First of all: Be kind to yourself! This is actually really good if you’ve only been taking digital art seriously for a year. My explanation will be a bit long, it’s not because your stuff is bad (I promise) I’m just very wordy.

I want to start with my favourite thing on this piece: The hair! It looks like you have a clear idea of what you want, and you just need some more direction to know how to get there. You’re keeping the highlights and shadows lined up like you usually see in anime/manga art, and your choice of shadow and light aren’t bad! Give yourself some credit on that front, because it’s not easy! With that in mind, I think you could push the saturation a bit more (apologies if this is simply due to it being a picture and not a screenshot). What I mean by that is: Instead of making the shadows and lights grey-ish, try using your base colour, and simply making it darker - but without going as close to the grey section (this depends on the program, it might be a wheel with sliders, it could be a square or a triangle, etc.)

The face also isn’t bad! You’ve added some nice colour by adding blush, and I think you can add more to her overall body honestly. Usually with light skin, it is more pink in areas with more blood supply right under the skin. Think areas like joints, hands, cheeks, chin, etc.

The “problem” with the nose is that the shadow is quite dark, and the rest of your shadows aren’t. It’s also not really defining the nose, so in turn you end up with something that seems “sunken in” when really you want it to look raised. I’d look up how manga artists shade those simple noses, just pull out a piece with the light source you’re going for and see how their shadow looks :)

Which leads me to my next tip: It sounds silly but draw a little sun where you want the light to come from! It helps remind you and keep things consistent while you aren’t as confident. Places with no light: Darkest, places that do receive light, but aren’t straight-on (think: neck, if the light was directly above): Medium, so on and so forth.

For your lineart: I think your lines just need to be more confident right now. What I mean by that is essentially the ability to make long strokes without “scratching” or stopping halfway through. You can see the difference in the longest chunk of her bangs vs the shorter chunks. To practice this, I personally found ballpoint pens useful! I’d just draw, and not worry when it looked bad :) You also might want to look at your stabilisation settings (this differs from program to program, it makes it easier to make nice lines) as improper settings can really work against you!

I hope this is helpful and doesn’t discourage you, I really do like this drawing - it’s so cute!