Life may be tough for you at the moment but never give up. Once there's life, there is hope. Everyday we have here on earth it's a sign that we can achieve our goal if we keep pushing.
No matter what life throws at you, never relent.
Know that there is time for everything; a time to be happy and a time to be sad. Things aren't going to be rosy all the time. Don't let your emotions overcloud  your sense of judgement, if you let that happen, you will take decisions that will destroy your life for good.
 
If you noticed you are getting depressed due to  the overwhelming things life is throwing at you, speak up immediately to someone, express how you and seek help. If you don't speak up, your mental health will be affected greatly.
Hope this helps someone gets better!