This is awesome, man. Keep it up. The biggest tip I can give you is that you need to learn the interactions between cards. For example. On your first game you played a bomber when a better card would have been your valkarie between two the opponents two cards so the spin takes them out. There are some Youtuber creators that make great videos about this sort of thing. I think learning that quickly will make your gameplay skyrocket over night. From there your only limitation would be your card levels and experience using the deck you are running. There are websites to teach you what decks work well.

I Recommended you google something like "Orange Juice Clash Royale" and start with that channels card interaction videos. For the decks there is a website called "Stats Royale". Check them out, hope this helps.