still messing up gender 🥲

hi all, like the subject says, I’m still messing up gender pretty regularly despite being at an upper B2 level of fluency. the thing is that I will notice it and catch myself and correct it, but I want to be at a point where it just doesn’t happen anymore (or at least not with such frequency; I feel like it happens at least once every conversation). I know it’s good that I correct it, but if I can hear the error and correct it, how come I can’t just say it right the first time?

I know most advice is just consistency and language consumption. but after 3.5 years of learning, currently dating someone who only speaks Spanish, and also working in Spanish in my grad school internship, I’m hoping to find any other advice that might help. any recommendations?