My first 6 or 7 quilts were log cabins done from Elanor Burns Log Cabin in a Day book. They are strip pieced using 2 1/2" strips and go together really easily. The book's binding is now shot because I kept it open on the table for the longest time till I "got" how to do it, as i was suffering from severe brain fog at the time.
Once I got going, I loved the process and just kept on sewing big blocks...because the strips are so big, the blocks are big and the quilt goes together really quickly, tho not really in a day for a newbie! She is great, she'll say ok, now you don't need this fabric anymore, get it out of your way. At that time, i really needed that level of handholding. i have seen that book for sale for under $10 on ebay, at amazon, on here, try buying it if you can, i think it's even better then her videos, those those are ok too.
have fun with it and don't get too uptight, it should be fun and your " mistakes" can be considered creative choices.