My answer for this is be yes. It may not be possible to show your optimism all the day to everyone, but still you can be optimistic with the work you are doing. You need an inner peace to keep doing what you love to do. To maintain this, you have to perform a simple task. Ignore others who ignore you and consider other who is here for you to care of you. This is very simple. Once you start focusing on your goals with fully charged up and enough energy to move on, there will be noting that can stop you. Remember one thing that you have nothing to prove to others on what you’re doing and they are noting to you. Their main job is to de-motivate you some how you will become a trap if you don’t stop ignoring on their personal aims. You got your job and it need not to be a show off to others, but you just have to maintain the pace on your work. Once you get distracted from your work, it is not easy to bounce back. Sometimes, later means never. Just ignore to the comments of others and keep doing what you love to do. You have got your job and you have nothing to do with others thoughts.
You can be optimistic by following a pattern on your goals to keep the pace going on and you can easily achieve them if you have a perfect pattern for your success map. You are the designer of your success map, not anyone else. You can be anything and you are the designer of your destiny. You can design you destiny well, not others. The more you get ot know about you, the more you will get a clarity on what should be done to reach your goals. You are basically optimistic and there is no need to prove this to others. There is not point in proving your goals to others. You just keep doing what you’re supposed to do and that is the only way to reach the goals .This is the only way to be optimistic all the day.
You can do introspection everyday about your daily happenings and analyze yourself and provide a route map to yourself for your journey. Everyone will have their own route map of their own, and it is designed by themselves, but not others. Once you have decided where to go and where to reach, then there will be nothing that can stop you. You just have to keep doing the thing you’re supposed to do with a pace. Your life will be happy when you don’t give a damn about what others think about you, Stay Together, Stay blessed!