Feeling positive is a good note to start your day and we have been always taught that everyone should stay positive. If you are feeling sad then stay positive, if you have a work load then think positive. If you are heartbroken, you are feeling anxiety and for every problem what you just need to do is stay positive. Just look at the good sight.
This advice is good and it is harmless even if we see on the other side that always forcing yourself to stay positive can also do more bad things. Life is not about always having good things that will be in your around, sometimes small adjustments should also be there.