Speak to an adult you trust about how your feeling
Remember that it is ok to not be ok, it’s ok to be sad and it definitely is ok to cry- no matter who you are, everyone gets upset and overwhelmed at times.
Try to get into good habits. Avoid spending lots of time on social media- it isn’t good for your mental health.
Try to use social media as a tool when you do use it. There are lots of good mental health pages that offer lots of tips and guidance. Unfollow those pages that don’t make you feel good, remove people who are not a positive influence. Remember that life on social media does not reflect reality, you only see what people want you to see.
Try to spend some time outside, do some form of exercise, even going for a walk will boost your mood.
Try to spend some time doing mindfulness activities (this could be something as simple as colouring or more specific like meditating). These activities can help alleviate the negative thoughts.
Make a list of things you enjoy, when you are feeling particularly low, choose one of those things to do.
Some people find these ideas useful, but always remember that different things work for different people and they may not work all of the time. Only try what you feel comfortable with, and try not to put too much pressure on yourself. If something isn't working for you (or doesn't feel possible just now), you can try something else, or come back to it another time.