Reduced libido after cutting for 10months?

Hey everyone. So I've been cutting from 10 months, and I usually skip breakfast, eat lunch ( not till I'm full) and dinner. My calorie intake was around 1.6-1.8k cals. I also did treadmill walking and burnt 200-300 kcal daily. But if I observe now, I can see that my libido levels have crashed and I don't feel much horny anymore. Is it because of the cutting and should I stop doing so ? How long would it take for me to be normal? I do get random erections but it's hard to maintain them for a longer time. I also smoke cigarettes. Can someone help me reset this