A couple of good old rah-rah type, time-tested sayings above, including:
"There is an old saying: Even a blind squirrel will eventually find a nut" and another I hadn't heard about a dog's ass that got a grin. Here's another one I personally like:
Put 1000 monkeys at 1000 typewriters for 1000 years; one will write a Shakespeare play. The moral is pretty clear, and what you should get from it is essentially, don't fret; you're a better fisherman than a blind squirrel, a dog's ass and even an elderly chimp.
On a more serious note, even some of we knuckle-dragging simeons also known as baitdunkers/spinfishers are having a hard go of it. Hang in. Or on, as from a tree branch, as the case warrants ...Damn, sometimes I slay myself.