Do you have any hobbies?
There is saying that rings quite true, you got to learn to make yourself happy before you can make someone else happy.
I can't stand someone who won't give me some space to draw or paint.
That beind said, a career where I am working on my own time and enjoy what I do does not mean I can just stop working and even if it wasn't my chosen career path I still would want time to myself.
I also need some time to go skateboard. I need my exercise and some time to clear my head and that does it for me. I don't mind if my gf wants to watch but if it was every time I would not like it at all. It is a dangerous sport at times and learning new stuff takes a clear mind and I don't mind showing people stuff I can do but to progress I need some time to just work on stuff I don't know and am not that good at. I am just using this as an example.
I couldn't learn how to do a hardflip and have a conversation at the same time unless it was about hardflips. I am working on hardflips now and yeah the last thing I want is someone watching me.
Clingy gets old and makes you feel smothered. So try to keep that in mind. I dunno go for a walk or read a book. Think about what you enjoyed doing before her or things you always wanted to do.
I am just saying I couldn't be with someone 24/7/365. I also couldn't be someones sole source of entertainment either. People usually work or read. Even if bed after sex people pick up books and read a bit. You gotta give someone their space.