I am 18 years old and I became religious 2 years ago,
where I live there isn’t many resources for kriah and I was sort of thrown into learning without having the proper foundations. I want to get to a point where I can read tehillim and my siddur without stress and where I can just pick up a Chumash and be able to read it without stumbling.
Im not sure if these are realistic goals, but if they are, are there any good online resources for kriah?
There certainly should be resources out there, both general and Jewish. Learning to read the aleph-bais should be covered by any secular learn-a-language type course on Hebrew, since that alphabet is used for Israel’s Modern Hebrew. There are also Jewish resources, like chinuch.org and others.
For example, if the mods allow the link: https://www.chinuch.org/gradetopic/2/Kriyah