How do I find myself again?
You find yourself again by noticing which parts of you went quiet, and doing the specific things that let those parts speak instead of adapting again. The feeling of being lost is not a mystery, it is a report. Something in your life has been asking you to be a different, smaller, more manageable version of yourself for long enough that the original version got hard to locate.
What actually went missing
Usually it is not your whole personality, it is your preferences. You stop knowing what you actually want to eat, watch, or do with a free Saturday because for months or years you have been answering to someone else's schedule, someone else's mood, or a job that required a flattened version of you to function. Preference is one of the first things to go quiet under sustained pressure, because it takes energy you no longer have to spare. Notice how often your answer to 'what do you want' has become 'whatever's easiest' or 'I don't care.' That phrase is doing a lot of covering.
Why this is not a character flaw
Adapting to fit a demanding situation is not weakness, it is a competent response to an overloaded system. If you were the reliable one in a family, the low-maintenance one in a relationship, or the flexible one at work, you learned that your needs were the variable that could bend without the whole thing collapsing. That worked. It got you through. The problem shows up later, when the pressure eases but the habit of bending doesn't, and you realize you never unlearned how to just want things for yourself. This is a learned skill doing exactly what it was built to do, past its expiration date.
What actually helps
Skip the vision boards and start smaller. Pick one decision this week, something low stakes like what to order or which route to walk, and make it purely on your own preference with no one else's convenience factored in. Do it even if it feels indulgent or slightly wrong. The goal is not the decision itself, it is rebuilding the muscle of consulting yourself before consulting everyone else. Also worth checking, honestly, who benefits from you staying quiet and easy right now. Sometimes the answer points straight at the fix.
The trap of over-searching
A lot of people respond to feeling lost by reading more, journaling more, taking more quizzes, trying to think their way to an answer. Thinking is not always the right tool here, because the self you're looking for was never lost in your head, it went quiet in your behavior. You will get more information from noticing what you do when no one is watching and nothing is expected of you than from another hour of introspection. Boredom, actually, is underrated for this. An unstructured hour with nothing to perform often surfaces what you actually wanted all along.
When this runs your life, it usually traces to one underlying pattern. For this, it is most often the Ghost rhythm, the thing under the behavior.