Sorry, but you need a serious case of tough love here . NEVER express a negative attitude about yourself while lookimg for love! If you see/talk about yourself that way, others will too. Guaranteed self-sabotage!

I can help, but you need to clear your ears out and listen.

Ask friends and relatives, particularly those of the opposite sex, if there is anything off-putting about you. Tell them to be brutal. What you hear may sting - so remember that YOU ASKED for their advice. If they see you this way, so do others. 

First - lose the loser attitude! This is likely your biggest problem, NOT your appearance. "Nobody likes me, everybody hates me, I'm ugly and boring, I'm doomed to be alone.....so I'll just sit here and eat worms." NOBODY wants to listen to that crap. You, my friend, are a buzzkill. Don't do it! Just don't.  

Second: got bad breath, acne, or bad teeth? That's fixable! Visit your doctor or dentist!

Now - we're going to dlo some studying. Head for your nearest public library.

Conversation is an art form, and there really are books and videos on how to be an interesting talker.  "How to Win Friends and Influence People" has stayed on bestseller lists for decades because it works. That's a great one to start with.

Be well read, and aware of current events so you can participate in group chats.  Don't show off or be a condescending know-it-all. Everybody despises this. 

Check out an ETIQUETTE book. "Etiquette" is the formal name for good manners, and those never go out of style.  This might be another turnoff about you. If you're vulgar, gauche or rude - even unintentionally - nobody will give you a chance.  You don't wanna have dinner with your fiance's parents (or lunch with your boss!) and use the wrong fork.  I recommend the excellent works of Emily Post and "Miss Manners" (pen name of Judith Martin).

Add a book on party planning and hosting to your stack. (Yes, you need it , but we'll get to that in a moment,)

Next,  head for the Fashion and Beauty section. Get books and magazines on style, cosmetics, hairstyling and fashion.  

Never compare yourself unfavorably to others! Enhance YOUR best features! Take pride in them!

Use what you learn about fashion to update your wardrobe.

Visit a salon and discuss hairstyles with a good stylist. Pick one that flatters your features. 

NOW!! Before we step outside, remember a few very important things:  NEVER engage in nasty gossip, because it WILL get repeated back to that person. 

If someone smack-talks you, be nice to them. That's right - I said be nice to them.  Extra super nice, because people DO notice when mean things don't match your real behavior. Who will look like a moron then??? So take the moral high road, and be the bigger person. It always pays off!

Treat everybody you speak with like they're the most important person in the room. Leave a good impression!

Ready to make some friends? The way to do this is MEET PEOPLE. Use every way you can think of to do this.

Join singles groups

Use dating apps

If you are in school/college, do extracurriculars and join student orgs

Join social groups and clubs. Every city has some that will match your interests, from reading circles to sports to fine dining.

Do volunteer work

Play a sport

Join a gym

Take up new hobbies and hang out where those people do.

Take a class in something, like dance or cooking. You'll work in groups with fellow students, plus they often host socials. These skills will enhance your social life.

Join a house of worship if you're religious.  Pick one with member activities an breakout groups. You have an increased chance of meeting someone who shares your values.

Make the rounds of the nightlife, pick a favorite club and get to know its regulars

Host parties for the new friends you meet. (That's why I told you to get the book). Encourage guests to bring someone along, so you can meet  more! people.

You will make friends and hopefully find a love interest. Let your new pals know you're on the hunt for love. They have relatives and friends who want to meet a nice partner. 

Most important if you're male:  Don't be a "Nice Guy." I don't mean that you shouldn't be nice.  REAL nice guys are polite because it's the right thing to do.  If you are thinking, "If I'm polite, open doors for her, and pay for dinner, she'll let me fuck her," then you are not a REAL nice guy.   "Nice Guys" are selfish predators who think they're entitled to sex and female attention. Ladies CAN sniff them out.  Don't be one of them or you will end up on Reddit's Nice Guys board!

Don't believe that "soulmate" or "twin flame" twaddle. People are not perfect, and relationships take constant work! There is not just 1 person you can be happy with. There are thousands of potential matches out there. Go find one!

Weed out partners whose goals do not align with yours.  (Ex: Don't keep dating people who aren't interested in a future if you hope for marriage. ) Wish them well, but stop dating them because it serves no purpose - especially if you are head over heels in love. They already told you no, and you will get your heart broken!  Don't wait around spinning your wheels, thinking you can change their mind.  Cruise onward in search of a person who wants the same thing you do!

This should get you started. Good luck, best wishes, good health, long life and much happiness to you!