It looks to me like you have given up already. If you are not willing to go past your introvert ways, and participate in basic group activities, then you are in a self-fulfilling prophecy.
You also say that all attractive girls already have a boyfriend, but that is no excuse since many modern men are either cucks or easily replaceable. If you hit right emotions, you can end a relationship and make it yours; women do it themselves all the time, in fact.
As for the swipe apps, they are irritating as hell, but should be treated like a supplement or minor side part of your social game. If you are solely reliant on them, you will always be frustrated.
Every thread you post on this website follows the same formula:
-Asks about "easy way" or "cheat code" to get women
-Every other poster explains why the suggested method is unrealistic, and gives you advice on how to actually improve your situation
-You reject the advice or come up with excuses of why you can't apply it.
A simple definition of insanity is doing the same thing constantly and expecting a different result. Stop being insane. Many of us here actually want to see you succeed, but you need to stop looking for easy ways out and actually put forth an effort to be more sociable.