How do I prevent negative thinking?

To prevent negative thinking, you need to fill your life with positive things, things you love, no room for bad thoughts

Change your outlook on life, and no I don't mean to say "THINK POSITIVE" like everyone else. What I mean is look for the silver lining in the situation. If you are in a bad place and nothing changes there is no point in being miserable about it. For example: *Falls down stairs* Seems really bad right? Well there is a silver lining, um, you got down those stairs really quick.

it's not bad when we have negative thoughts, in fact most of us deal with it...the problem starts when we start to believe them or when we let them affect our daily life. The best way to prevent them is, whenever you get a negative thought...ask yourself, are they helpful, are they making you feel better or do you have any reason to believe in them? Validating your thoughts is the best way to prevent false thoughts. If you find that these thoughts are not helping you or are false...stop and do tell yourself that. Do something to make yourself happy, something that can occupy your attention, it can be anything like going for a walk,a run or any of your hobby. You can even try writing your thoughts down if it helps you :)

Distract yourself! Do things that make you happy. Talk to yourself. And when I say "talk to yourself," I mean, say positive things to yourself. Love yourself. And then, you'll automatically embrace your flaws ;)

Focus on the beauty of nature, remember your good experiences, believe in the universe and so whatever happens everything has a divine purpose.

I can meditate, going to walk, talk to a friend, or listener here, try to help someone in need, try to think of someone, beside of myself.

Do things to prevent too much alone time and time to think negatively. Essentially, just stay active.

Keeping my mind busy with things I love to do, helping others and getting the satisfaction that others are happy keep me happy. By being preoccupied with positive things, there is no place left for negative thinking!

Fill your head with positive thoughts. Brush Negative thoughts aside and mentally tell yourself that you do not need it. Replace those thoughts with positive ones.

Keep calm and modest. Think of a dream you once saw and were enchanted by it. Think on how nice our deepest desire of living in one of those is that we start to wonder how perfectly trivial our low concerns can really be.