Search Results: what causes low self esteem

Ok so i have VERY low self esteem and i have been feeling like the ugliest girl ever lately but, my parents & my friends say that i'm very pretty? Wtf i really don't believe them at ALL i mean i've never had a boyfriend , no guys show interest in me EVER and it makes me feel really ugly and insecure :( but my parents and fam tell me all the time that i look like a model and it makes me feel very confused because when i look in the mirror i don't like what i see at all and if i were to auctually look as pretty as they say then would't i be confident in myself? This is just really getting to me ! I fought with my mom yesterday night Because she told me i was ungrateful for feeling ugly and that i'm very blessed to be pretty and all this BULLSHIT i seriously don't know what to believe !! I NEED approval of others to feel good about myself & i just wanna know the truth i wanna know if i'm really as pretty as they say i am or if they're just lying cause they don't wanna hurt my feelings by the way i'm only 15 years old i put that i'm 19 but i'm really not lol!! So maybe my low self esteem could just be because i'm still a hormonal teen lmao but tell me do you think that parents lie about this stuff? Is my mom lying to me? Am i really just an ugly piece of crap? Or do they really think that i am beautiful?

Alright, so I've been having a hard time with my feelings lately with my boyfriend. We've been together for a little over a year now and it's been long distance... we haven't actually met in person yet, but I've seen/talked/spent HOURS with him everyday for a year and a half now. (We're planning on meeting in December) I love him a lot but I struggle sometimes because some say I should find someone "better?" Like, he tells me too that I "deserve someone better than him" but at the same time I love and care for him deeply and don't want to "abandon" him. But he's got problems. Basically...

1) He's the oldest of 9 kids and his parents recently split. Due to this he had to miss a lot of school to help his mom take care of their 5 year old twins and this pretty much caused him to be held back a year because he didn't have time to study properly due to his family fighting and needing his help. (So 3 years until he's done with school and we could possibly be together)
2) Due to the poor family household, and being shy he also has mental problems (Depression, Paranoia, Low-Self Esteem, and another thing that's a result of his childhood neglect/bullying)

I feel guilty because I feel like I put too much pressure on him sometimes being older and done with school already and starting my career. And my parents don't approve and think I'm stupid for "wasting my time with him." But I really care for him and don't want him to be alone. I know he's capable of being successful, he just has a really hard life. I don't want to leave him either because he needs me for emotional support.

But everyone seems to tell me to "find someone else/don't wait for him" (except friends, they're like "If you're happy be with him") so I don't know what to do? I love him, and could see a future with him, but it would take about 5-7 years until we can live together and get married...

For age reference, I'm 23 and he's 19.

Should I "find someone better?" Or is it OK to wait?