If you realized how powerful your thoughts are, you would never think a negative thought. Learn to get in touch with the silence within yourself and know that everything in life has a purpose.
"Don''t let yesterday take up too much of today,becoz everything is in present..yesterday is the past that u have lived off..so live today it won''t come again."
The way I see it is you have two choices in life; you can be grateful for everything life has given you or you can be resentful for everything life has done to you. Your degree of happiness is directly proportional to the conviction of your choice