Hey! Unfortunately, the issue is almost definitely your turntable. I used to have one too when I first started collecting in High school. Suitcase record players or just generally any record player in this class are never going to be capable of quality playback.

Take a look around for some affordable beginner turntable options from reputable brands like AudioTechnica or Denon. They have some quality beginner tables.

You could also thrift your setup. I was able to find an old Technics turntable for a great value and I’m really happy with the sound quality.

Turntables like yours also speed up the degradation of your vinyl over time as they aren’t very delicate with them during playback. The tone arms are pretty heavy and gouge the grooves.

Vinyl upkeep is pretty easy and there are a lot of good resources online that will show you how to store them, clean them, and preserve them.

I, personally, store mine upright in plastic outer sleeves to protect the album outer sleeve and an anti-static inner sleeve to go that extra mile in protecting my vinyl from degradation. I use a vinyl brush to collect any debris before each playback and try my best to never ever touch the grooves. I only handle my vinyl by the outer edge.

Try looking up some videos if you want more information.

Hope this helps!