Need some help...

[TCU FROGS!!!]

https://i.imgur.com/sXNszXf.png

^ Is all I have in my inventory. I have yet to aquire tools, I can't access the room in Dorothy's house. I can't open a blue suitcase in the Inn. I can't access the basement in the hospital, and I can't unlock one of the gates in the cemetary. I have been talking notes and I have done/opened everything I can think of. Please help!

[TCU FROGS!!!]

I also can't figure out how to get into the Photography store. The only clue I have of that is that "Dorothy Patterson" has the spare key.

[EQ Studios]

Out of the things you listed accessing the basement of the hospital comes first, the others are a spread a bit further apart (That cemetery gate cannot be opened). Since it is hard to gauge how far you are into the game with just your inventory I will just provide all the steps to get to the hospital basement with the least amount of backtracking (Excluding the slim jim since you already have it). Feel free to hop off anytime if you feel like you want to solve it yourself without any hints. Also, note that this walkthrough uses the bare minimum steps so there's much more to find.

1. Use the slim jim to unlock PI Steve's car in front of the Inn.
2. Check the journal to read over the investigator's notes, you will find the code for the security room on the last page.
3. Head to the church and head upstairs to Scott's room.
4. Check the toy airplane to find a date.
5. Interact with the airplane picture hanging on the wall near the bed, to uncover a safe.
6. Use the date as a code to unlock the safe and remove any zeros (mdyy).
7. You will find a note describing the password to the secret hideout.
8. Use this code in the toolshed in the backyard of the Mansion to grab Trisha's drawer key.
9. Enter the Mansion and proceed to the second floor and you will find the security room near the stairs to the bar and the pool table.
10. Once unlocked, grab the key to Trisha's room.
11. Use the key you obtained at the toolshed to open the drawer next to the bed and grab the metal cross.
12. Go to the cabinet across the bed and open the middle door to get the cabin key.
13. Head to the Hunting Grounds to find Scott's Cabin (check the map to find the approximate location).
14. Once you enter Scott's Cabin you will have to grab the key found in the drawer with the gramophone (music player) and head back to the Church.
15. Enter the Church storage to open Scott's things chest to find the key to his basement.
16. Head back to the Cabin and enter the basement.
17. Check the left side of the dresser to uncover a secret compartment and that matches the shape of the metal cross.
18. Place the cross and use the light switch inside the dresser to find Scott's secret room.
19. Check his drawers to find the key to the sewer and a map of the system.
20. Head to the pathway between the Hospital and the Mansion to access the entrance to the Sewers.
21. Now navigate to the Hospital using the Sewer system.

And that's how you enter the Hospital basement, that should unlock more routes for you investigate.
If you need any other help just let us know.

[TCU FROGS!!!]

I figured it out! I realized I forgot a key in the cabins basement that led to the Sewers. Thank you EQ Studios for bringing me a game I didn't know I needed in my life. There were a few bugs that made me wait 2 minutes to reset but other than that. This is the style of game that I want to play on a regular basis. Can I give you a hug over the internet?! Thank you!