Don’t worry you can figure it out.  This can work really well as a personal philosophy provided you don’t make it too all-encompassing.

Figuring stuff out is virtually always possible.  However, sometimes it is not expedient or efficient and quality often is diminished.  Completing a task or objective at the moment might work but might not be the best solution.

Risk Prevention

Identifying things that could go wrong and proactively working out an approach to mitigate them when they do can be more effective than figuring out how to deal with the issue when (and if) it occurs.

In both cases though, whether you plan in advance how to resolve problems or deal with them at the moment, there is nothing to worry about.

Fear and worry arise because we intuitively recognize working things out on the fly can be challenging and might not produce top quality results but we should not worry about failure, somehow we always figure it out.

Avoid Rushing

Working out how to deal with a problem or unexpected event can be a rush; both from the surge of adrenaline and the need for speed perspectives.

Being aware of things that could go wrong and preparing in advance (i.e., figuring it out) is probably the best approach to dealing with problems but is not always practical.

Worry about things in advance though does not make sense. Either plan how to address it before it occurs (in case it occurs) or be ready to deal with it at the moment.  However you choose to figure things out, in advance, in the moment or a combination of both approaches, remember, there is no need to worry.