Thank you :)
Yes I considered RPGMaker when I started thinking about this game, but I am really unfamiliar with it so I decide to use unity, where I have at least basic understanding, how things work. And after some thinking I decided to remake it into 2D, so I might look into RPGM again, but i think i will stay with Unity.
Even though I wanted it to be 3D, even the basic movement system didn't really work as I would want so 2D it is. But I would really love to make this game into 3D as well :D