This title isn't clickbait. I am legitamately going to teach you how to verify if you yourself will ever be a time traveler.
The first step is simple, you need to envision all the ways that time travel could manifest. Will your future self be fully present? Will they be more like a ghost? Will it be more related to radiation and perhaps manifest on the internet or in other electromagnetic phenomenon? Will alternative realities be involved? Make a list of all the possibilities and memorize it. Spare no possibility.
Next you must simply make a plan. Write it on a big whiteboard in your living room. You are going to go back and send a sign to yourself in any way you can if time travel is ever possible in a capacity in which to allow it. Make this a conviction. It must be set in stone and you must consistently remind yourself as long as you can.
Now look out for the sign from your future self. Get creative in your search but remember if you do see this sign, don't stop the plan. The plan is stone. See, if you see a sign from yourself and just decide to quit, you will have created a paradox and therefore, time may end up forcing you back! (ironically enabling paradox induced backwards time travel, though you won't remember the sign you sent yourself). No, you must keep the plan even if you see your plan. March through life with confidence that you someday will have mastered time!
You may find that if you think about all this too much, you may end up creating paradoxes in other ways! So follow the line of logic carefully lest you screw up time!
Have fun!