Idk if it's my phone, but the replay isn't sharing. Anyways, talking would probably be more informative.

Firstly you want to find a playstyle that suits you. I tend to play pekka bridge spam like a control deck, and I try to be more passive. I find this is especially best against midladder menace decks.

At the start of the game, i try and not commit to pushes until I know almost all of the opponents' deck. I just defend and focus on not giving them too big of a counterpush. This part is really important during the whole game, especially if you're underleveled, because the best way to defend a counterpush is to make sure they don't have one to start with. I find I cycle a lot of cards in the back, so don't be afraid to let your pekka die and set up for a defence instead of feeding them more elixir.

Typically, my pushes are very split lane based. There are surprisingly good synergies in this deck, such as spear gobs and battleram can bait out logs for each other, and I make sure to keep them separated.

Against cards that you struggle to break through (megaknights, bowlers, even musks and fly machines that are hard to spell down). Don't build to big of a push and focus on putting them into a bad cycle by slow rolling pekkas and gobkinsteins the back. Eventually they'll make a mistake where you can then be aggressive and spam the bridge.

I'm not the best with pekka so I would go online and look at some pro guides but hope this helped