If I was going to think on anything
remember the successful and fun surfs you had,
what it was to ride that special wave you undoubtably remember, feel the temperature of the sun the view the clouds and the colours. Hear the pleasant sound of the waves sliding up the shore, maybe you can smell the salt of the sea, that feeling as you slide into the water. let each sensation embrace you and welcome you back.
See, you can feel that smile you had last time you had a good time out there. Guess what

it is sitting out there waiting to be smiled again
Practical stuff; take on small bites of days where you are likely to be comfortable and successful and bit by bit increase your time and size of the experience. Go with a positive friend
let non surfers opinions slide away as they do not know the feeling. To quote an appropriate ad,
"Only a Surfer knows the feeling!"
I've taken up troll hunting just for fun, instead of a rifle I'll just use a pun! 冲浪爷爷