I Want to Be Positive About Life

I feel like in society you cant please anyone, if you love yourself your conceded or high maintenance,and if you have low self esteem your weak. I really have problems with this,I hate myself,I feel ugly. I tell myself I'm grate and beautiful and it never works, when I look in the mirror I feel ugly I feel like I'm lying to myself when I tell myself I'm grate. has anyone had this problem ?,I have been having it for years. I also really hate being single and having no close friends. how do I deal with this?