Hi Luka, welcome to Beyond Blue forums
Firstly dont take notice of your "friends" opinions or judgements. Most humans are naive about depression and will judge you in the negative. When you need a friend to talk to you wont get one your age most likely that will understand.
Do some reading on this forum. Use search. Some suggested threads include
DEPRESSION - a ship on the high seas
Depression - is there any positive?
Getting depression into perspective. Please read this, it might help YOU
You dont mention medication. If you havent been to your Dr and are on a mental health program please look into that.
Finally. Recent research has found that setting goals too hard to achieve can make you feel like a failure and cause the onset of depression further. Set achievable goals and dont be too hard on yourself. The depression isnt your fault and your friends might be naive now but one day their good health will let them down and they will struggle to. So you are not freakish....just not perfect. That at least proves you are human.
Take care. Tony WK