I’m also asexual and I get how you feel. For every person it’s different but specifically with me I feel a lack of attraction as well as a lack of the desire to do the activity. I have felt this way for over 7 years but it takes time to grow into your own skin. Do some research and look for similarities between how you feel and others
basically what #1 said! asexuality has nothing to do with how you feel about sex, you could enjoy it, not like it, just like masturbating, or any other possibility it's about whether you experience sexual attraction to anyone so does someone's physical appearance turn you on? do you see someone attractive and specifically want to touch parts of them? and other questions like that might help you
Asexuality is an umbrella term, doesn’t have to be wholesale or unfluctuating. You got subcategories like demi (only attracted to people post forming platonic connection), gray (less drive than allosexual), flux (variation), aro (lack or different capacity for romantic attraction). The ace/aro community stream on here is pretty wholesome - you should join it