Find a hobby you enjoy, even if it isn’t a social hobby. Get involved in that. Get involved in the community around it, whether that’s local or online. Start talking to people, find other common interests. Branch off into those interests with small groups from your hobby, or new groups entirely.
I don’t know you, so this isn’t a judgement of you or your situation, but people don’t like one-dimensional people. Find a variety of things you enjoy doing just for yourself that isn’t just video games or YouTube or tv, and then find spaces where people talk about those things. Start going to a gym or taking fitness classes, or join a hobby painting group, or a TCG/board game group, or a book club, or a jogging/biking group, or a crochet circle. Volunteer at local food banks or animal shelters.
Meeting a variety of people and having different, interesting things to talk to them about will help you make friends. Making friends will help you meet potential partners and practice communication skills to make the relationship work. It isn’t always easy or fast, but everything I’ve found a partner it was after I told myself “you know what, I’m don’t waiting for friends and companionship to fall in my lap. I’m going to go out and make it happen, or at least have fun on my own if I can’t find others to have fun with”.
Games, books, music, and travel are all great hobbies to find people to tall about as well, though! You just have to find ways to make them social. Sitting and playing CoD alone or with random match making aren’t great ways to meet people, but getting involved in a discord server is a better way to meet people. Better still if you can find a local, in-person group that hosts meet-ups.
But if you want to meet people amd make friends, you need to make time to meet people and form relationships with them.