When your mind and heart are truly open abundance will flow to you effortlessly and easily.
How do I stop worrying about the future and thinking of the past all of time?
First you must be aware of when you are doing it and realize it is an unconscious habit. That conscious recognition allows you to see the worry response and attachment to the past objectively instead of being caught up on the emotional story. Just taking a few deep breaths and being aware of your mental/emotional process brings you into the present time and that higher presence of consciousness begins to dissolve and repattern your habitual worry into a relaxed and easy response to the present. Without ever struggling against your mental habit, you will find that over time your silent witness awareness will spontaneously replace that unconscious habit with present time awareness.