You can sandwich a FQ or so of a large floral fabric and practice outlining the individual flowers and leaves then echo quilt around these again. This quickly gets you comfortable with moving the fabric around to follow a pattern and getting some control over your speed and where you are travelling.
Gloves or finger cots are very helpful in gripping the fabric, but don't clutch the fabric just place your hands on it to guide it.
Work a small, manageable area at a time and don't try to cover too large an area in one go.
I'm sure you will receive plenty of advice and support from everyone here so go ahead and have some fun with this.