Is it too late/impossible for me to transfer? If not, what are my chances?

I think my institution (SFSU) takes how many years you have left into account when determining your status, which was why I mentioned it.

If I have over 70 units and have taken upper division classes next year, would I be able to pick which credits I could remove? I’d ask UC Berkeley themselves but their transfer advising is only available during the summer and beginning of the fall semester.