In this video, I show you some ideas on how I was able to level my walkway. I used basic tools, shovel, 60" crow bar , pieces of bricks and stones, 2x4 , odds and ends and big gap spray foam insulation to fill in negative spaces. It held up without moving , lifting or dipping for 3 months so far. This may not be a forever solution but it's great for the next years to come, and eliminated my trip hazard spots.