Buy a good swivel knife to start with, you can buy a Barry King for about the same price as a craftool pro from tandy and. Barry’s blade will be sharp to start with, just strop once in awhile. I have numerous brands and sizes I have used for years including King, Henley, Beard, Smith, Miller, Stolman and others, they are all very good knives. Practice, practice, then practice some more. I prefer a 1/4” straight blade with a 3/8” barrel, that is probably the most popular combination. Hope this helps!