Starting over and need help!

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Hi there
I used mfp a few years ago and lost nearly 3 stone..life, work etc meant I kind of gave it all up and became complacent :| I have put 2 stone back on since then and have decided now to get a grip and start again, mainly because I feel unhealthy the whole time!
I'm 40 and live alone so need support really in "what the hell do I eat"??? When i did this before I was married so made some nice food but am struggling to find food for one. So if anyone is out there that can help I would really appreciate any ideas etc