Hi all - thank you for looking at my post and giving me advice!
So, I have been surfing consistently 2-3 times a week for the past 7 months, and I've advanced to the point where I can go down the line, get some speed, do bottom turns, cutbacks (weak, but can do them), and I've started to work on my top turns. I can also go out in about head high surf and be confident, anything larger I'm a bit more iffy about, but I will still go out and try. I actually learned how to surf 6-7 years ago, and have surfed intermittently since then, but only in the past year have I been more consistent and been improving.
Right now I am riding a 6'6 used board that has around 30-33L of volume, I'm just estimating volume based on the dims and what I've researched. I am 5'6 110lb, 17 year old girl, so a shortboard for me would probably be around the 5'6-5'8 range, depending on the volume and such. I am also a swimmer and water polo player, so my paddling skills are great and I can pretty consistently get into waves.
Based on that info, should I get a used shortboard, and if so, what volume range should I be looking at (keep in mind that I would like to be able to duck dive, which I can do now, but not very well)
I really appreciate any advice! Thanks!