How do you stay away from jink food when it is in your house and so tempting to eat but you try to start eating healthy?

You need to remove it from your house if you cannot resist.

Otherwise whenever you feel yourself reaching for it, make yourself wait 5 minutes before actually eating it. In that 5 minutes think "what happiness or fulfillment will this actually give me. How will I feel after I have eaten it. Is it worth it." I find the answer is no and overcoming the desire to be a rush. The more times you resist the stronger you feel, and you realise you do not need or even want it eventually