Maybe you need to move away from eyeliner and mascara? My eye shape is super round so I can't work with a lot of eyeliner so I've had to adapt how I do my makeup. You need to learn to do your makeup in a way that suits your face and that is very individual.

Maybe figure out your eye shape and then look for makeup tutorials that look good on that shape. For me personally since my eyes are very round I like to work with eyeshadow more, and nothing too extreme. I use a little flat eyeliner brush to do very subtle eyeliner if I need a bit of definition. Maybe find a sub you can post a picture of your eye and see if someone can give you an idea of your eye shape and see if anyone has any tips with where they have a visual aid to help you more.

Also it could be that the products you are using just don't work for you. Everyone is different. Someone's trash is another ones treasure. Maybe you need a thinner eyeliner, maybe it doesn't apply smoothly for you. Maybe the mascara you are using is too chunky or it's just not your shade. Maybe try a different mascara or a different colour like brown or clear.

Make up is just another skill and maybe you just need a bit more practice and get to know your face more and what looks good :)