What is the size and volume I should be looking for...

Hello everyone, glad to be here and excited to make my first post searching for some advice.. so a little about myself and my skill level. I began surfing as a child through the influences of my Aunt, Uncle and brother. I spent a lot of time in the ocean on the east coast in New Jersey into my teen years prior to high school. I started out and progressed onto a short board at a young age but quickly out grew my first small board. It was then that instead of buying another board that I was placed onto my brother 6'5 JS and that was were I think my progression began to halter. The board felt like a boat to me and I could by no means turn or maneuver it at all. From what I remember I stopped surfing as often and then into my high school years got further from the ocean and stopped surfing almost all together aside from some weekends and the chance I was at the beach for a bigger swell. Flash forward to about 18-19 and I started to find the passion for surfing again. I began traveling and taking trips that were surf oriented, (cali, and Puerto Escondido) as well as surfing at home more often. Right before then I also had bought myself my very first new board. a 5'11 hybrid shape by a local shaper. I have always had confidence in my ability to stand up catch waves front and backside down the line, reading waves and where I feel I should catch them at, as well as my paddling ability and fitness. I rarely fall once I stand up and can travel down the line easily. Within the past few trips surfing I have worked on gaining speed through compression and though I still have work to do I am confident I can do it. This brings me to where I felt I have struggled the most. Since I had started surfing my brothers board at a young age to even now I have felt I lack the ability to carve, and keep the speed through any type of turn that is not trimming. My frustration has always been bogging my rails or feeling as if the board won't drive with enough speed as I would want. My knowledge in surfing has grown since I have refound my passion for it, but with all the brands out there it is so hard to figure out what may or may not work or if I'm not channeling my energy in the right way. I am 22 now and my height and weight are 6'0ft 170-175lbs. I have usually always surfed boards in the 33-35L range. My locally shaped board I believe falls at about 32-33L. But from what I have researched this is probably not at all the correct volume for my weight and is probably why my progression has gotten so slow but I don't know. All I want is the best possible board or volume that will help me progress my surfing past this stage. I now currently have lived on Oahu for the past 4 months and bought a 5'10 Hypto Krypto. I think it has definitely helped me progress with gaining speed but still have not moved past that bubble of carving and maneuvers. I do also think I put myself in pretty steep waves here on the North Shore, up to slightly over head. I am curious to see what insight everyone could give me on my situation and what might suite me best. I look at any board shapers site and the volume calculators don't seem right to me for my weight, and I also don't understand correctly the "X inches shorter then your standard shortboard" motto they put on some boards. Since it seems like that board might be a better volume for me but at a 5'10 not the 5'6 they recommend. I also think I might not know what MY standard shortboard size even is though. I think I need to give the shortboards I'm used to around my height of 6'0 a couple bumps up in inches to 6'2 6'3 possibly but thats another question I don't know. Anyways, sorry for rambling but if you guys on here could give me any insight I look forward to communicating these things going on with my surfing and board knowledge. Thank you all in advance! And happy New Year as well.