my recommendation is to get either a silk touch pick or i think it's either a shovel or a spade that will do it too and go out to the wild in a snowy biome and spend an hour or two getting these yourself cheaper, more fun, etc
Bad suggestion. Make an enclosed area in wild. Brind a few snow blocks 2 minimun(from shop) and a shovel. You'll need a pumpkin. Fence some sort of 5x1 spot with a hole in the middle and make a snow golem Pumpkin Sno block Snow Block Then the block under it will have snow, use shovel to take it out, Done. It'll automatically have snow after you shovel it(like 1 click)