Did the exactly the right thing and my advise is best get used to it as it is a typical scenario in the day of a VFR PPL who know what he/she are meant to be doing up there.
Succcessful VFR flying in the UK is alot to do with constant evaluation and decision making, particularly where the weather is concerned.
Unless you are being paid to do this, there will always be tomorrow.
Turning round is not a sign of weakness nor is it a sign of failure. The worst thing you can do is nothing, eg press on in the hope the weather sorts itself out.
Your judgement is sound and will make you a better all round aviator. Don't leave it too long before trying the same trip again.