- Political Ambassador
Of course you can go to university after college! I went to a college and now I am in university. Most of my college friends are in university too (the ones who are not in university yet are staying in college for one more year to complete a BTEC and will apply to university afterwards). I did do A-levels, but that is beside the point since I know people who did BTECs and who got into university.
Are you sure A-levels are not for you? I would give it some thought. If A-levels are not for you, maybe try a BTEC?
Sixth forms do not do BTECs often while colleges do, so maybe going to a college would be better for you. However, if you decide to go A-levels in the end, it does not matter if you go to a sixth form or college.