The fastest way to make skincare feel impossible is to buy too many maybes.

Start with the three basics
Cleanser, serum, moisturizer. If those three feel good and get used consistently, the rest of the shelf becomes easier to judge.
Add by moment, not panic
A tinted moisturizer belongs when you want a softer daytime finish. A night cream belongs when your evening routine needs a richer final step. Lip balm belongs wherever you will actually use it.
Keep the shelf honest
If a product does not have a clear place in your morning or evening rhythm, leave it out for now.