how do you go on to drawing character interactions without them looking stiff or awkward?? whenever u draw characters like hugging and stuff they always feel so warm and natural n like they have weight!

FIRST THINGS FIRST: if you want characters to feel like they have weight, they gotta have balance.

The second thing is to use references!! Use a mirror or photos when you can, but I often use duckduckgo and just google stock images. I don't use pinterest, but I suppose that works. I find it way more helpful to look at lots of images of the same pose at all different angles than to try to reference one specific image.

Got any advice for how the closer i am to finishing something the less i wanna work on it

the bad answer is to only do things you can hyperfixate on and do in one sitting. I do not recommend this. (I do this..)

the GOOD answer is to outsource your motivation!! this is why the animation & game industries rely so much on Production Managers. they're your little cheerleaders that keep schedules for you and give you reminders to finish. Even just having one (1) friend to hype you up and be excited about what your making can go really far towards making art feel more rewarding!