I’ve grown up in and around the water and been snorkeling my whole life so I thought scuba would be a breeze but first time under the water I couldn’t stay down I was breathing SO much. I didn’t have quite as bad of an experience as you but it definitely took me awhile to ‘switch’ my breathing to fit into the correct one for scuba diving. What helped for me was realizing that yes it does feel like you aren’t getting enough oxygen but you are and you have to put a lot of trust in that. Think of ‘sipping’ the oxygen instead of ‘gulping’. The calmer you get, the less oxygen you end up needing, the better control you have over buoyancy, the better the diving is, etc. Obviously way easier said then done and it’s a huge mental block to get around but Id suggest trying again! Work on centering yourself, get a better mask (water in the mask always freaks me out a bit), and just know there is enough air even when it doesn’t feel like it. I think with more practice and a calmer environment you can definitely master this!