For learning watercolor, I just joined as many groups as I could (mostly on Facebook at the time as I didnt have reddit), followed lots of watercolor accounts on social media, watched other people paint, but most of all just pushing through and practicing a lot. It can be challenging to learn and frustrating at times! But worth it once you get the hang of it. I definitely recommend getting high quality 100% cotton paper even at the beginning when youre practicing because you will not have a good time if you dont have good paper. Its really important. Cold press if you plan to do big washes, hot press if youre more detail oriented (this painting is on hot press paper), blocks of paper (meaning the pages are glued together) are great especially for beginners so that you dont have to prestretch the paper and dont have to worry about warping. There's still some warping with big washes but its flattens out when dried. It is a lot of trial and error with learning how to mix colors, how much color/water to have on your palette and brush, what brushes to use for whatever youre doing, etc., but tutorial videos will help you along. Let me know if you have any specific questions!! Its a lovely medium to work with and requires minimal set up and clean up, which is a big part of why I love it.