The game power,lost of everything!!!

That was hard to read for sure. 

I'm 48 so not far off your age but I can infer from your post OP that you aren't happy about some of the balance changes. They aren't perfect but there were too many balance issues; Frozen Citrons outsniping Cacti, Super Brainz beams crisscrossing the map at long range, etc. These needed to be dealt with and they're actually doing a good job overall. And some things like the changes made to Super Brainz's kick got fixed almost right away when it was changed recently. In a competitive game like this you're always going to have people crying for and against their favorite characters.

It's important to note that this isn't solely a GW problem, it's endemic to competitive shooters. Overwatch is still undergoing big changes, look at what happened to Mercy as a prime example. Paladins is constantly fixing things since they release champions far before they're really ready and any time you have characters with vastly different abilities in games like this there will be problems. 

GW2 isn't perfect but it's in a much better place than it was. 

Oh and on the microtransaction front; I have bought them all and used to buy coin packs but my friend that I often play with hasn't spent a dime outside of getting the deluxe edition and the only character I have that he doesn't is the Unicorn Chomper. He has less stickers in his book too of course but he's more patient than I am.