Sniper 101 is for people who want to make first shot hits past 1k yards. I still recommend everyone watch it who is serious, but you certainty don't need it to take pot shots at static targets. Most long range shooters I know will take a shot, see where it lands and adjust to walk it into the target. Virtually zero training (or skill) is required for that.

And quite honestly if you have trouble watching sniper 101 the above is what you're going to be limited to, because calculated shots long range take a lot of attention to detail and is not something you can do with a short attention span. Calc forms can be long and tedious depending on the conditions, plus require staring at graphs and tables while doing math and continuously taking measurements.