I'm honestly over everything?

[*Bubby_ Bubbles*]

I haven't been myself lately and I'm honestly feeling sad/ depressed. I'm over: school, "friends", backstabbing, assignments, Taekwondo, family, family fighting, bulling. My "friends" also sent a rude, mean meassage over social media. It was sent as a group message but was directed at me and I know that for a fact. I have 0 self confidence.
I'm just over everything.
It's really hard to find new friends during senior year as everyone has there groups already.
Once a blue moon I think about s***ide, which I can't do.

It's all getting to me and I feel like I'm close to a break down. I almost had a break down at school a few days ago.

What do I do if I have a break down at school, for example during class?
What do I do if a teacher asks whats wrong?
I'm just sick of everything

Thank you 10 points for best answer

[Boris]

Oh dear! I feel really sad for you. I've looked at some of your other questions and answers and I think you are seriously depressed. You are being bullied at school, and I would take that very seriously. I think you need to talk to your school counsellor, or a teacher that you trust. Tell them how you feel, and hopefully they will find a therapist for you. Good luck and God bless!

[Bara]

you have lot of choices first endure finish school and start a new life after that
Second revenge; as you said your friends made that message since they your friends you can expose their dirty secrets, I know this is evil but if you are on the right side screw everything.(but this has to be planned very well and there should be a plan to protect yourself too) and this choice is wrong for a good guy and a good heart because it will define the new you.
third you could take advantage of the situation and improve yourself to be a higher greater person again this will define the new you. You can concentrate on your achievements if you don't have ones make new ones be strong minded and be someone who they will wish they are friends with. This will take patient and planning as well.

As you mensioned Taekwondo you can use that to gain self control and confident through training and I know that by experience, fighting make you use your mind and make choices and plans to defeat your opponent.