How do you keep going when life feels meaningless, and you don’t know what to do?

How do you focus on the journey instead of the outcome? I want to do so much but the comfort of home and the uncertainty of the future paralyze me. Everyone else seems to be moving forward, even if they don’t want to - while I feel stuck in both the past and present. How to let go of people who have outgrown you and Don't feel same about you and the time you spend together? For them it was just a phase ,while for me it was the part of me, that they have took and left a hole in it, which will never be filled.