Stop worrying about being alone because you have been alone all your life. (Coming from such a young guy who is barely past adulthood). Life is about living and building a life that you enjoy. That includes friends, family, and activities and endeavors that you look forward to and they sustain your happiness. Obviously this online shortcut to that end is not working so some common sense tweaking is in order.
Date and have fun with many and don't fall for the dumb stuff BECAUSE you are lonely and need a female companion. Learn to appreciate being ALONE which is different than LONELY, so you can enjoy your single life to its full potential as an opportunity to explore your world as a mature healthy adult male in mind, body, and soul. You are just going through GROWING PAINS as you become experienced in yourself and others and the rest of the world.
Embrace it, but reject, and adjust to the stuff you run into that makes no sense, and LEARN to do better. You have made mistakes in the past (like we all have and do often), so correct them by not making them again, by learning from them. And above all stop thinking you have to fix the flaws in others, and fix your OWN.
If you have good orderly direction others will follow your example, and you will attract those who want to share your happy example, and there will be no need to make someone into what you want. They will already be what you want. Learn the difference, and for heavens sake stay off the damn pity pot! That's why you are desperate and fall for the crap you do with flawed females. Nothing wrong with doing guys stuff, but look around at doing PEOPLE stuff, and EXPAND your opportunities for good clean adult fun with good clean adult people, in person.
Your outcomes for fun, and happiness will be so much greater, so get busy and live your life, as there is no excuse not to. The opportunities for love and romance with other healthy adults will happen when you are ready to be a healthy adult yourself. You will learn if you want to.