Increasing dose every 2 weeks not feeling better

hi, my doc put me back on trintellix after trying two other drugs which i just did not react well to. she put me back on trintellix because i had a partial response to it and she found out she could go even higher so she wants to try me back on it. So ive been on 10mg for 2 weeks now on 15 mg for 1 week and not feeling any better. is this because i keep increasing? ive heard every time you increase its like starting over and it can take another 4 to 6 weeks. anyone else here been on trintellix?

not sire if this helps but did try TRINTELLIX it did not agree with me at all. Lexapro has been the only helpful med i can tolerate. I have heard a lot of good things about VIBRYD. Not sure if this onfo helps.