Can I somehow still go to my insurance choice?

I've had students try to do this previously.

We just didn't make a decision and left both their offers to time out at the end of the cycle.

Are you just unsure which uni you want to attend, or have you changed your mind?

I am sure about the uni I want to attend but I am scared I may have second thoughts later on.

When you say you had students attempt to do this, do you mean that you used to work at a university admissions office and just rejected or ignored students who tried to do this? How could you tell that they were doing this?

I've worked in undergrad admissions for many years. I am now in a postgrad role but still in admissions.

It's fairly obvious when a Firm offer holder is dawdling about sending their results. Some will even ask to be rejected and tell you they've missed their offer, not realising that we actually need evidence of their result, (if it's not one that UCAS communicates to us automatically). Again, they don't realise that the Firm uni always has first refusal, so if they don't accept/reject, then the Insurance choice can do nothing about it.

All quite silly and uncommon, but I have seen it.

Ultimately if your firm accepts you, (removing your insurance offer in the process), you can always ask your insurance uni if they'll accept you anyway. It's just that the original offer is removed by UCAS as a matter of course.

The important thing to ask yourself is - what is likely to change your mind between now and results day?