Help becoming Real Platinum God

[parkour pro]

I only have 37 achievements left and then I'm a real platinum god, I really only have character unlocks and challenges left but I've got a few questions.
1. I know how to become the "Lord of Flies" but I'm having difficult making the dream come true, so what's a good "Strategy" to become the "Lord of Flies" so I can get that achievement?
2. Tips for playing as The Lost, currently, I have The Lost unlocked but have done nothing with him! Not even killed Mom yet! I really need help, should I leave him for last (When his items are the only thing not unlocked/collected) or should I brave it now?
3. This one is straight forward. I need Dark Boy and Dead Boy achievements (Beating Depths/Necropolis and Chest/Dark Room without taking damage) any tips? (Especially for Dead Boy)
4. Strategies for "Suicide King" challenge, (I've been trying to get guppy's head as a starting item and I've almost finished it, so feel free not to answer if you feel you don't need to) "Family Man" challenge, "Purist" challenge, "Demoman" challenge, "Cursed!" challenge and when I have it unlocked "Glass cannon" challenge. I have looked up strategies for all of these before but they all say the same boring garbage, so if you can help with any of them please do!
5. Godhead. I guess this could be put under #2 but here it is, unlocking Godhead, what tips do you have, how long did it take you?
6. The last question. Do you think I'll be able to do it before Afterbirth is released? Can I become Real Platinum God in only a month and 3 days? It's only 37 achievements but I also have to collect them all. I play every day so maybe I can!

[Bignastycupcake]

1. there is no strategy, seeds do not work. the easiest way is using the d100, and hoping to get lucky, or just getting a lucky seed.
2. i recommend getting the holy mantle before trying a run, it makes it SO much easier.
3. you'll get dark boy and dead boy when you beat the game with the lost.
4. suicide king is a very easy challenge, believe it or not. what you can do is, run up to an enemy (keeping distance enough to not take explosive damage) attack, and
quickly run away. family man...dear god, that was my worst challenge. i really cannot give you much advice for that one, i just recommend trying to use the infested baby to the best of your ability. purist, just treat it like any other run, in fact, winning that challenge will help you do better. demoman is not a hard challenge either, (if it's the one im thinking of) just use Dr. Fetus, and use the self detonation to quickly kill an enemy, speeds up the process a lot. cursed, is a little difficult, but just make sure you spare the yum heart, (self regen) don't use it every room...use it when absolutley necessary, you may need a couple retries. glass cannon is easy, you shouldn't have much difficulty with that one, only because you start with Epic Fetus.
5. it took me a couple tries, the hardest part is the lamb, ??? is basically the isaac fight, just with some homing bullets, and getting rid of the holy white death, but just be ready.
6. im trying to get RPG before afterbirth comes out, but it's just a matter of time for me to get it. if you do plan on getting, it make sure you have the store upgrades, and 999 coins in the donation machine, that's the longest thing to do. aside from collecting all the items.

[parkour pro]

Originally posted by Bignastycupcake:

1. there is no strategy, seeds do not work. the easiest way is using the d100, and hoping to get lucky, or just getting a lucky seed.
2. i recommend getting the holy mantle before trying a run, it makes it SO much easier.
3. you'll get dark boy and dead boy when you beat the game with the lost.
4. suicide king is a very easy challenge, believe it or not. what you can do is, run up to an enemy (keeping distance enough to not take explosive damage) attack, and
quickly run away. family man...dear god, that was my worst challenge. i really cannot give you much advice for that one, i just recommend trying to use the infested baby to the best of your ability. purist, just treat it like any other run, in fact, winning that challenge will help you do better. demoman is not a hard challenge either, (if it's the one im thinking of) just use Dr. Fetus, and use the self detonation to quickly kill an enemy, speeds up the process a lot. cursed, is a little difficult, but just make sure you spare the yum heart, (self regen) don't use it every room...use it when absolutley necessary, you may need a couple retries. glass cannon is easy, you shouldn't have much difficulty with that one, only because you start with Epic Fetus.
5. it took me a couple tries, the hardest part is the lamb, ??? is basically the isaac fight, just with some homing bullets, and getting rid of the holy white death, but just be ready.
6. im trying to get RPG before afterbirth comes out, but it's just a matter of time for me to get it. if you do plan on getting, it make sure you have the store upgrades, and 999 coins in the donation machine, that's the longest thing to do. aside from collecting all the items.

I have all store upgrades (I finished about a week ago).
Thank you so much for all the advice! I'll take it all to heart and see what I can do.