You could have sex a thousand times and not enjoy it if its always with the wrong person. Some of us don't enjoy sex unless we have a deep emotional connection with someone. Its not simply a matter of breaking yourself in and by the time you've had sex 100 times, then bam, you love it.

Sex can sometimes be a bit awkward the first few times you are with someone, and in that sense, it can get better over time as you learn what your partner likes and vice versa.

I'd quit having sex under the influence. I take benzos to help control my anxiety, and I can't orgasm to save my life if I've had one in the past 24 hours. Sober sex is better all around.