Decaffeinated coffee and green tea have natural appetite suppressors and won’t disrupt your fast drink them regularly. In addition keep a jar of pickle juice around for times when you feel not right low blood pressure etc
I’d say. One meal a day is a good way to start. Make that your normal eating pattern.
Once you are used to it It’s a simple transition to a few 48 HR fasts now and then because you just need to skip one meal and it’s mentally not as daunting.
Particularly with losing weight try to eat very low carb for your meals to keep your body in a ketogenic state and burning your fat even when you are not fasting.