First of all :welcome2:to the forum and to Friday Girls Ubeera. There are a lot of stories on here to inspire an spur you on. It is, however, important to remember that what works for one person may not suit everyone. Some people get immense support and enjoyment from groups - I prefer to go it alone and use my experience to guide me (groups such as SW and WW have the opposite effect on me I am afraid). For me it is simple - if my head is in the right place I can do it, if it isn't I can't.
As far as scale jumping is concerned - again it is preference. For some scale jumping works and for others it is better kept to once a week. One thing I would say though is always use the same scales where possible, at the same time of day, with the same clothes (or none).
My journey has been a long one which had a huge chunk of what life throws at us parked up in the middle of it. I am, however, back on the road again.
Good luck in your own personal journey - I hope the road ahead is good to you x