I understand what you mean when you say you want to learn new techniques..... I do the same, I know I will struggle to catch fish when I do this but here is what I do
Pick a technique/lure
Start in a area that you know holds fish.
Do not use another technique/lure for a set period of time (I usually do a week fishing at least 5 hours each day)
What this allows me to do is hone in on my skills, see how the bait feels.
How the bait feels on a rock, stump, sand, shells, mud..... etc..
This is what I do and it has helped me greatly more than you will ever know
Big thing is to just believe in yourself and have confidence above all put faith in God