I'm really new to crochet, I've only been learning for about a month. Dd would like me to make her a sunflower granny square tote bag, I've done a test run making the granny square and am pretty confident I can do it I'm just not sure what yarn would be best? I get super confused between it all, do I want aran weight? Dk weight? I don't even know what they mean tbh, I'm thinking cotton would be best but again I don't really know so I'd love if someone more experienced could tell me what to buy!