I used to have a problem with bottling up emotions (that is, suppressing them), and one of the many side-effects was a pessimistic or negative outlook.
To that extent, what worked for me was to look within. What was I not expressing, and what was I covering up with the negativity and sarcasm? Ten years later and I still have my many moments, but I know how to deal and I know what works for me. My ego doesn't get in the way of my awareness although I still tend to be too hard on myself. I guess what I'm saying is I found more of 'me' through that, rather than just 'positive me' or 'negative me'.
Before looking into how to deal with it, it might be worth talking to a counsellor or a therapist to see what the 'why' might be, and then you have something more specific to work with. A good coach would also do the job, especially if this is more about habit and not stuff from the past. All of these people are professionals who will be able to hold the space for a useful conversation about those things.
That way, you can also avoid the trap of finding new and novel ways to repress the negativity, which can very well guide you towards a mindset of toxic--or forced--positivity.
It's also important to remember that negativity in and of itself isn't inherently bad. Anger, sadness, frustration, and so on are seen to be 'negative', but the solution isn't to banish them or fix them, it's to acknowledge them and deal with them in a healthy way. The feelings are there for a reason.
To that extent, what worked for me was to look within. What was I not expressing, and what was I covering up with the negativity and sarcasm? Ten years later and I still have my many moments, but I know how to deal and I know what works for me. My ego doesn't get in the way of my awareness although I still tend to be too hard on myself. I guess what I'm saying is I found more of 'me' through that, rather than just 'positive me' or 'negative me'.
Before looking into how to deal with it, it might be worth talking to a counsellor or a therapist to see what the 'why' might be, and then you have something more specific to work with. A good coach would also do the job, especially if this is more about habit and not stuff from the past. All of these people are professionals who will be able to hold the space for a useful conversation about those things.
That way, you can also avoid the trap of finding new and novel ways to repress the negativity, which can very well guide you towards a mindset of toxic--or forced--positivity.
It's also important to remember that negativity in and of itself isn't inherently bad. Anger, sadness, frustration, and so on are seen to be 'negative', but the solution isn't to banish them or fix them, it's to acknowledge them and deal with them in a healthy way. The feelings are there for a reason.