In reply to nopuk24:
Dependent on the answer to previous question, if you're climbing the same rock you'd boulder outside (ie not climbing Peak lime), do some outdoor bouldering. In fact don't need to necessarily do recorded problems - just practise traversing, smearing, topping out on easier stuff you make up yourself. But have someone else to hold you accountable and challenge you to try awkward moves.
Ofc I never do this because bouldering is terrifying, but the folk who do seem to have far better trust in their feet than I ever do.
This won't work for jamming. That needs proper learning.
And if you are talking trad 5a and it's your first time outside, cut yourself some slack. I wouldn't expect a novice to grit, for instance, to necessarily second VS from the beginning. A period of gaining mileage, and pointers from more experienced climbers to learn how to read the rock, is possibly your best way forward. Climbing in a three/group helps with this as a leader shouting from on high often can't actually give you that much useful feedback.