May have to go through clearing - what should I do before results day?

Hi. So, my exams are over, I THINK i've done enough, but I'm still slightly nervous that I haven't got the grades I need to get into uni (Warwick)

My insurance choice is not a lower offer than my firm. So if I don't get the grades, I can't go to either.

I'm trying not to panic about this - if it happens, it happens. I was just wondering what I could do to prepare for it, if I don't get the grades? I don't know where to start. Should I be looking at other unis? Is it possible to go to a uni whose offer I rejected, if they're in clearing? And are there any resources to tell me which unis are offering clearing spaces?

The clearing list is already out. You just have to hope a lot of people miss their grades so they open it up I guess!

It seems UCAS already posted their list on the search website, but it's not accurate. I dialed up Uni. of Strathclyde for a course listed, they said they don't enter clearing at all and haven't been for the past few years.