Sure I have told this story before but here it comes again.
Many years ago living in the burbs where men were men and women had 19 inch biceps

Yes I grew up in a tuff hood and going to school was like going to fight club
My first board was a 6.? single,yellow with white deck.It cost ten bucks and in great nick,back then that was a bucket load of money so I asked my brothers girlfriends (now long time sister in-law) brother to check it out and he gave it the nod.He was a great surfer at the time.
I was 12 at the time and the holidays were always down Yamba,not the place for a beginner.Oh Yamba,first shag and I was not 12,first stitches and first fin chop.Anyway I buy the mix and as I do today never read the instructions.Living at home I decided my room was my work shop. I mixed too much hardener and within a minute the thing started smoking,I was sh-tting myself,there goes my board up in flames until good old mum comes running in with a bucket of water.I got my arse kicked for that one.
That's my story on board repairs,fast forward, I'm pretty good now and repair a zillion small jobs but I always take my LB's to a good repairer.
My son and his mates still ask me to fix a few small dings and I am happy to do it.