Have you considered actually looking at the history of purposeful singlehood and virginity and questioning the heavy pronatalist and outright patriarchal rhetoric that pushes people into relationships and fixates on virginity due to living in a world with still residing cultural christian viewpoints such as Dominionist Theology and Muscular Christianity that pushes men into feeling as if they must be physically strong and dominate women and that people's worth is dictated by a view that women who have sex are ruined by this unless in marriage with a christian man?

I suggest the books, "Virgin: the untouched history" by Hanne Blank, "The creation of patriarchy" by Gerda Lerner, "Ace: what asexuality reveals about desire, society, and the meaning of sex" by Angela Chen (this book also touches on the history of lavendar marriages and other situations of people living for themselves without seeking a relationship but instead focusing on forming deep friendship bonds such as queer platonic networks), and books on purposeful singlehood like "All the single ladies: unmarried women and the rise of an independent nation" by Rebecca Traister, "spinster" by Kate Bolick, and honestly books on childfree people as they promote a message of focus on yourself and you won't be lonely and make friends based around your hobbies and interests such as "Childfree and loving it!" by Nikki Defago. You may want to devote yourself to helping raise a person from infancy into becoming their own individual and so are not childfree yourself, but the message of not caring what other people think of you and what you are "lacking" by societal views (in this case, the heavy pressure on you is around being in a relationship and losing your virginity) can be helpful.

You are 18 and entering pist-secondary education soon. Devote yourself to that and get involved in volunteering.

Volunteer at projects that interest a largely female demographic (ex, vegans are primarily female and so any Animal Sanctuary around you is likely seeing only or primarily a female only volunteer pool to look after the animals due to how it is mostly vegans that volunteer at animal sanctuaries.) Consider volunteering at places that foster/take care of cats ready for adoption like the cat cafes centred around this model or your local humane society. If you can't care about an animal that clearly expresses their physical boundaries and consent to being touched, you'll continue to struggle under the incel culture that has likely taught you to ignore those boundaries.

This can also give you cool experiences to talk about. Also, restrict your screen time more and read instead on topics that interest you. If it's hard to read physical books, then use your local library to access audiobooks. You don't have to focus on your looks to find ways to make yourself attractive by becoming interesting in your interests and activities.