That's a very good approach to take to work up to a full BLD solve. Two things about BLD, 1) Celebrate your successes, since it really does feel good to get a solve. 2) Any practice in BLD is good practice. So if you get a streak of DNFs, just know that this is necessary for learning in BLD. DNFs help you to learn what NOT to do. However, when you do DNF you have to try to figure out what you did wrong. At the very least, for every DNF right now, Rescramble the cube and try to trace back through cycle by cycle to see what you did wrong. If you do this diligently now, then not only will you improve your accuracy very quickly right at the start, but your times will get much faster too.
Using the journey method (or roman room, or any form of locus method) is a very useful tool for solving blindfolded! This will help especially if you decided to work up to multi or bigger cubes BLD one day. Even if you have no plan for that now, it's nice to know that the method you're picking will easily give you that option.
Very cool! Keep up the good work, and yes please keep us all posted!