How do I prevent negative thinking?

Negative thinking is hard to avoid, but you can find positive things to counter them. Whenever you notice that the bad thoughts are clouding your mind, simply go back to the positive ones (Write them down if you want to). Positive thoughts to most scenarios can make your outlook on things much more positive in the end.

Focus on what you want to achieve in life. Remember life has it’s pro’s and con’s so listen to the pro’s!

Any time you start to think something negative, try to shift your mind to something cute, like dogs, or someone you admire. Try and remember all the highest points of you’re life, times with your friends and when you were really happy

If you’ve lived with negative thinking for a very long time, you might think it’s unrealistic to just suddenly expect yourself to change your approach. In this situation, even affirmations and thought stopping techniques may seem to merely delay negative thinking for a later date. If this sounds familiar, you might want to spend a couple of weeks at least enforcing boundaries when it comes to negative thinking. The idea here is that you choose a fixed, limited period for allowing your mind to entertain negative thoughts, and that you commit to forcibly stopping or fighting them at every other time of the week. When you’re reassured that you will have time to consider these thoughts, you may find they seem less powerful and have less potential to dominate your mind. Further, many people find that they can’t even think of anything when they come to their scheduled time to allow contemplation of negative thoughts, and that this actually helps them to break their pattern.

I prevent negative thinking by listening to music I enjoy, watching my favorite movies and spending time with my dogs and other animals

I stop negativity in it's tracks by realizing that I have to make mistakes before I succeed, that I'm human and I can only act on my perception and my past, so everything is excusable.

Distracting yourself with anything, listening to music, and try to sleep when it’s too bad.

One thing that always helps me is challenging your negative thoughts! Identify whether or not the thought is true, rational, positive and if it isn't, replace it with one that is!

By slowing down, having longer pauses between thoughts. I embrace negative thoughts as much as positive or neutral thoughts. Most of the times, when a thought gives me a -ve emotion, I question myself "Is this just a -ve assumption or Is it a warning against overly +ve or ignorant decision"

By feeling gratitude for the good things. Making yourself busy in something constructive whenever you feel that negative thoughts start to come. Deep breathing can also help.