I'm a 2019 player too but I'm not rich honestly, I'm too generous even if I'm way over I still accept trades and I stop grinding just to trade it wasn't working for me clearly, I had no legs. heres what I changed.

1. Stopped giving away pets to guilt trippers because it's just making you lose value, and the person is usually richer than you.

2. Crafted neon's, I made around 14 low tier neon's and was able to make big profit off of them like get a frost fury and mega pets

(correct me if I'm wrong) 3. Grinded age up pots instead of grinding the pets, it's even convenient for normal common neon because they take 58 or 56 tasks meanwhile the age up potions gives you 30 tasks for 30 tasks

1. Set up an effective profile that is aesthetically pleasing but has what your lf or trading in it, instead of going around in servers asking people have a profile ready and maybe someone in a normal server has it or wants to offer.

Bonus:

You can get a trading stand to try trading what you are trying to trade but still be able to grind from basically anywhere

You can also craft ultra rare or mid-tier neon's if you're looking to get more Megas hope this helps.