I bought a slider, found for me it was a total waste of money! I would suggest you can do FM. Here are some tips that worked for me.
!. Take your time and don't rush
2. buy some felt and practice on this. You will find it is much easier on felt, til your ready to move to your quilt.
3. Make sure you use a size 16 needle.
4. cut the finger tips out of your gloves, this allows you to move the quilt easy and thread needle, etc
5. start with bigger movement, not too close. practice C's and U's.
6. practice, practice, practice. You CAN DO IT.