Well handled.
You made a navigational mistake; this is a normal state of affairs for anybody flying light aeroplanes. We all do our very best not to, but don't always succeed, however experienced.
Then, using available resources you got out of trouble, without going to pieces, and spoke to the people you needed to speak to. Again well done.
For a 35 hour pilot, you are a credit to yourself and your instructor. Learn from what happened, and handle any future mistakes as well, and you'll continue to be.
Well done, and stop beating yourself up - it's not necessary. I'd not expect that anybody will take any action against anybody for this - it might appear as a footnote in a report somewhere with some lessons to be learned from it (so if somebody does come and ask you more questions, don't worry, just be open and honest with them - as I'm sure from your attitude above you would be anyhow).
G
(Also got lost on my QXC, and although I didn't infringe any airspace, probably didn't handle it as well as you have).