I wish there was a magic bullet, and I know there are folks out there who are naturals at this, but the only thing that really works is practice. I read an article that suggested 15-20 minutes a day for a month. Don't practice on a quilt! Get some muslin or other inexpensive fabric and make a stack of 18" sandwiches. You need to get the motion down before having to also deal with the bulk of a quilt, and you won't be worried about 'ruining' something. You can just put another piece of fabric over one of your original sandwiches & go at it again. Use different color threads for each reuse so you can easily check the tension on the back. You will need to find out what works for you. If you have different darning feet try them all. Also, feed dogs down worked for me, but others like them up. Gloves are a must. A hands on class is also helpful.