I want to start basic with a 2D Undertale kinda vibe game and maybe someone would have some tips. I want a simple game but with a triving story, ias I said i’m just starting so i have no idea how to work the engine or how to implement or even make 2D drawn character or object assets. If someone stumbles into this convo maybe you want to leave a tip. Thx.
Check unity tutorials:
And if you want to start then just do first step: open unity and start making your game 
Later you can ask something like “How to put my sprite in the scene ?” And you will get answer “move your sprite in the assets folder/window and drag&drop it in the scene”.