Dash light won't shut off draining battery and key doesn't shut car down

What is your question?

When I turn key off it doesn't go all the way to off and one of my dash lights the one that says p r n d always stays on if I go to many hours without starting battery has to be jumped to get car started. Sometime when I'm driving car shuts off it doesn't seem like the key is n all the way it's very loose and comes out very easily. Not sure why. Sometimes my car doesn't have much power at àll and won't go over 60 but other times it is fine.

What makes this problem better or worse?

When I stop and turn car off then back on after taking key out then put back inins

How long has your 2007 Chrysler Sebring had this problem?

Since I had car a month