Crashnquilt has some great recommendations. We're all guessing you are talking about machine sewing but there is also hand sewing. Many of these recommendations would be the same as the cutting/measuring practices would be the same. Start small. Try your hand at some pot holders or table runners to get the feel of things. Use the least expensive, decent fabric you can. Thrift stores can be a treasure trove of inexpensive fabric. Decide if you want to machine quilt or hand quilt. Again, start small whichever technique you decide. Many of us have been sewing/quilting for years and are still intimidated by many things. Just enjoy the process...it's not a race.