The Unlucky Fat Guy

I would suggest starting small. If you can't do 1/2 an hour do 15 minutes. If you can't do 15 minutes do 5. Just try and be consistent about it. You'll probably find that you enjoy the peace your able to get from a those few minutes and may wish to built on it. In my experience, it is not the duration that matters as much but the consistency. You're building a habit. I know what you mean about a busy life but I find though that I'm able to spend 1/2 an hour or so before bed to do some meditation. Other days I do more. There are probably as many approaches to meditating as there are people on this planet. Try experimenting and see what works for you