One more suggestion:

. . . Stop doing multiple passes.

Do _one_ pass, WTG, with good lather, until you've learned how to do it under control:

. . . no weepers, no razor burn.

When you can do that, add a second pass. And _don't_ use more pressure on the second pass!

You don't say what blade you're using, or how many times you've shaved with it. Sometimes a different blade helps, sometimes it's just a matter of un-learning old habits, and developing new ones.

. . . What blade ?

. . . Which Merkur? Some are a lot more aggressive (that is, hard to handle) than others.

. Charles