It is also possible you just have a bad jelly roll! I once bought two small jelly rolls my daughter fell in love with. They were not from a major manufacturer, and they were dreadful! They were very unevenly cut with a total variation of width of probably 1/4". They also had a bit of a bend in the middle from poor cutting. I ended up finally finishing the jelly roll race quilt she wanted me to make, but it took a lot of fudging to even make that forgiving quilt. Anything that needed accurate piecing would have been impossible. Since then I stick with Moda precuts.

I have a similar pattern, it may be Bonnie Hunter's but I am thinking of using 1-1/2" strips between the blocks. I don't want to try matching so many seams & this may work well.

I'm so sorry about your fall and brain injury. I know it's frustrating and scary; I had a nasty fall several winters ago when I slipped on ice at the gas station. I hit my head on the metal gas pump and got a terrible knot. Went through weeks of having trouble with things that once came easily--matching things up, measuring, remembering how to do fractions. I healed , thank God, and pray you do as well. Hang in there.
Chances are, you will have an "aha" moment and will suddenly see why things are not lining up. If you're too frustrated, put it aside and do an easy thing for a bit. Putting pressure on yourself won't help; it adds to the brain wires messing up.

Roberta, I suffered a cerebral vascular accident, (blood vessel in my brain blew) in 1990. I learned to quilt after that. The good news is with brain injuries you can continue to remember things at odd moments for years, other things you just figure a new way to accomplish. Do not give up, just set this UFO aside, and look for another quilt to try. When you go back to it (maybe in 6 mos.) the directions might find the old pathway to making it. I have found that sometimes just giving myself more time makes things click better. If you can't come up with the answer by next year, make a jelly roll race quilt using the YouTube videos and move on. Don't let what was depress you, just know that your new normal will bring you blessings and skills you never knew you had. I am sorry to hear you were hurt, but your new normal will have it's bright moments just like the old normal. Hugs.

Here are the pages - maybe someone can check this out and help this young lady with overcoming her health issues and get back to her passion. Thanks in advance.[ATTACH=CONFIG]571806[/ATTACH]

Time and willingness to adapt also helped me recover after a severe concussion. Try something very simple that is driven by your favorite colors. Or make a rag quilt where matching up corner is not essential. Your brain function will recover.

I had a stroke when my DH died and my memory suffered. Take it easy and ask for help. Start quilting with just squares or make a simple jelly row race quilt. Your brain will rejuvenate eventually, it's a marvelous organ.

Prayers for a full recovery!!!

This post has my vote as "best answer". Hugs.

The problem may not be you nor your malady. Read some reviews on this book and more than one person mentioned that the lack in continuity of size in jelly roll strips creates many problems with this set of patterns. Also several mentions of needing/having to buy a particular ruler to have good success. You may have this ruler, but if the strips you are using aren't uniform . . . sounds like the problems may not originate with you. Don't stop quilting! Don't give up any ground you've gained! Praying for you!