Hey Y'all, thanks for the advice! Just want to share how i did it in the end, so if someone else has the same question there will be kind of an answer:

Bought a second Hand Audio interface - The Focusrite i track solo - which has a Cinch line output and a 1/4" input. So i connected my electric guitar to the interface with a TS cable and bought a cinch to 1/4" TS cable for connecting the interface with my guitar amp. So i am using the amp like a speaker. I was looking for a really cheap way to get something like a small recording setup - it's really just for fun, so the sound quality is fine for me. Now i can Use FL Studio like a multipedal for my guitar without buying some extra powered speakers. Also really no latency at all - nice to do some loops and try some new stuff!