Yes, I recommend doing that. I think having 35 points of negative qualities is almost always a good idea. I'd suggest just browsing through the negatives in the core book, RC, and maybe Augmentation and Street Magic and see what jumps out at you; I often find thinking about negative qualities helps get a clearer picture of the character in my mind.
If you had another 20 points, I would go for another Body and Intuition. This does leave you light on skills, but picking up low-rating skills is much cheaper than raising attributes in gameplay, and you aren't missing any role-vital skills.