Are you comfortable enough to say what those are on here?
I have some things about my face I don't really like and sometimes I wake up and feel ugly. I use to feel ugly all the time. But now I just have days sometimes where, like you I feel sad. But 1 thing is, I accept myself for who I am. I never wanted to get surgery to change myself. If I thought I was ugly I just accepted that, my flaws I just accepted that and went on about my life. That is what you have to do. Don't dwell on it and don't let it stop you. Work on what you can improve and accept the rest. The first step to self esteem is acceptance after that is self love.
Another thing is a lot of the time, we are our harshest critic. Things you don't like probably aren't as bad as you think. Sometimes we look at ourselves and only see the negative things. We look over our positives and our best features. Find the things about you, that you love and focus on those. You may see someone you think is pretty and you compare yourself against them and see what you don't have. Never, ever compare yourself to other people. Focus on becoming your best self not your best compared to someone else.
I have a lot of things about my face I don't really like and sometimes I wake up and feel ugly. I use to feel ugly all the time.