Im having a bit of a hard time figuring out what aspect of game development best suits me. I have a real passion for level/ environment creation like placing assets(such as props and more organic items like trees), creating layouts, texturing, lighting…etc but Im not too interested in 3D modelling. I have a basic knowledge of modelling in 3Ds max but nothing great. I have done abit of research into this but I just need an extra helping hand.
Are there any aspects of level/environment creation that doesnt involve 3D modelling?
I think you answered your own question there! A level designer does exactly what you described without the need to model. It depends on what you would like to do. Do you want to work in a big team on a big project? In this case, I would say that learning some scripting would be very complimentary and put you in a great position to be hired (a perquisite in most cases)
In any case, getting stuck into something like the Skyrim toolkit where you can use their assets would be a very wise move.
The most important thing is to just get started. Good luck!