So many people have profound spiritual experiences and integrate this energy, this "knowing," into their lives and it can be transformational. But have you ever gone back to life as usual and spent time around people that don't "get it" or think that there is something wrong with you for believing that you had such an experience? Since people generally view others through the lens of their own personal lives, they see you as they always have. If your friends, family or coworkers have not had similar experiences in their own lives, they likely won't be able to see it in yours.
When this happens, it is easy to allow doubt to creep in. I think that one of the best things you can do to help you to hold onto what you know is to be part of a spiritual community. You don't have to belong to one group or one church. Check out the groups that interest you and notice the energy there. Notice how you feel when you walk in and when you leave. You will know what fills your spirit.
And when you need to be in touch with people who don't understand (perhaps at work, at home, or back to your home town), hold on to what you know is true for you. Remember that it is said that Jesus could not heal in his home town. The people of his village knew him and his family and perhaps they could not expand their sight to see that this carpenter was now healing people. If your village can see who you truly are, that is a blessing. If they cannot, just hold on to what you know is real for you, and move ahead to those who are ready to see your shining light.