If it were me, and my gut was telling me no, I'd hold off for a little bit, do a lot of research and then make a decision either way. That way you know it is fully informed kwim? If you just rush into it when you aren't sure you want to continue, you may regret it later and it is already too late but if you take your time and think about it more first, then you wont have that regret. Once it is done it can't be undone.