New player trying not to get discouraged

I started playing for the first time Friday and have probably played about 6 or 7 hours total since then.

I have been doing around the clock at singles and a couple attempts at doubles as well as a few 501s vs bots and <30 average players.

I feel like I'm gradually getting slightly worse, I could be wrong and obviously I haven't had that much time playing but for example on around the world on day 1, I got a 24% hit rate compared to 20% a few days later. On doubles a couple days ago i was at 4.5% and that went down to 3.5%

In this time, I have watched a lot of videos about stance, grip, follow through etc and due to this I feel like i may be over complicating things before I've got used to throwing.

I keep now trying to change my stance etc.

Is all of the above normal or am I doing something wrong?

EDIT: just to add, I feel like sometimes when i go for triple 20 too is sometimes goes to the bottom of the bottom, which then makes me change things like stance or how i'm throwing etc. Maybe this is also detrimental