How make the player teleport where he look

what I want to do is for the player to teleport where he sees, I have already solved that for now, I am using set location with raytrace, so I ask for help is because I always stay between blocks, for example if I teleport twice in a row to down I am between blocks or if I point to a tree it puts me between the leaves, is there any way to avoid this?

Attached image of what I have: https://i.imgur.com/fMADYTT.jpg

ps: when I put the if do blocks and then I put the is air at xyz block the command doesn't work directly