You can do it with tape. But you have to be on good level spot.
Get your steering wheel straight , have someone or someway to keep it there.
Measure up off of level surface , make a mark with chalk on your rims , front of rim and back of rim on back side. Then take reading on back , then front
Then do your adjusting on tie rods. You can check camber with a two foot level. That is to see if your tires are straight up and down, not leaning.
But if it was me i would take it too a shop.