Danke Schön! I really appreciate it!
Wie weiss ich wenn ich sollte "will" oder "würde" gebrauchen? Ich wähle immer "wrong" (cant find the word in german)

Ich will = I want to (a bit forceful which is why especially older people consider it rude sometimes)
Ich würde = I would (like to)

Example:
Ich will Eis essen = I want to eat ice cream
Ich würde gerne Eis essen = I would like to eat ice cream (this sounds a bit formal, usually you'd say "Ich möchte Eis essen", but you can say "würde gerne" with anyone, while when you say "ich will Eis essen" some people may tell you to say "möchte" haha)

Würde is also part of Konjunktiv II (this is something you want but cannot have / do) Here, you cannot use "will" at all.
Example:
Wenn ich Geld hätte, würde ich Eis kaufen.
Würde doch mein Paket endlich ankommen.

Würde is also used as "could / may" in questions. Here, you cannot use "will" at all.
Example:
Würdest du bitte das Fenster schließen? (Könntest du bitte das Fenster schließen is exactly the same, both are very polite)

Does that help? If not, you can give me some examples where you got it wrong (falsch :)) and I can have a look.

Thank you! That helps alot!

Danke Schön!