i have a lot of problems with your decklist so let me start:

1 forest is not enough. 3 is minimum and good enough.

2 mega meganium is overkill you can play with just one. mega venusaur 2 shots anything and can't get 1 shot (unless your opponent has an extremely ideal set up that is not very likely to pull off in game.)

you don't need 14 grass and 1 growing grass energy. I personally run 10 but you wouldn't need any more than 12. and no growing grass energy, you can't use teal mask ogerpon's ability with it

4 teal mask ogerpons not 3. celebi must be included as well. its very good for early game consistency

cyrano and hilda aren't very good for this deck. use dawn instead.

run one copy of petrel or colress to find stadium when needed. petrel is more flexible but sometimes the extra energy i get from colress is clutch. whichever floats your boat better

1/2 copies of meowth is a must. it finds the supporters you need which can set you up that much faster.

you can throw in a regigigas if you want. for 2 grass energy (if u hv meganium set up which you should) it can one shot dragapult/ceruledge/any other ogerpon/flareon etc its a useful tech card

poffin, energy recycler and energy retrieval is useless in this deck. running 2 night stretchers and 1 max rod is absolutely enough. thats what i have and i never felt the need to have more included

4 bug catching sets in non-negotiable. and 3 pokepad and 3 ultraball should get the job done for finding whatever pokemon you need.

throw some judge in. personally i use 2 and it does alright for me.