I think that one of the best ways to gain confidence in most aspects of PPL flying is to share flights with more experienced, competent pilots. Ideally, this should include flights to other airfields and sometimes, but carefully, in what you might consider marginal weather. If you do this, make sure beforehand that you have an agreed procedure to help you if things get too much for you. I was lucky enough to have a mentor/friend who helped me to be confident enough to fly to most airfields within the UK and France. OK, sometimes my confidence in him led me into some situations I would never have got into on my own but, I guess, that's how I learnt.