You're so much stronger than your excuses. 
"Nothing can dim the light that shines from within." - Maya Angelou. 
"Instead of focusing on all the reasons you CAN’T do something, you need to focus on all the reasons you CAN do something." ~ Matt McLeod 
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2 How then, do we trust we will reach the destination if we can't see the whole staircase? The light at the end of the tunnel is too dim! At this point,we may need to ask ourselves if we have a vision, a purpose to why we exist.With this, we can form an urgency to achieve that which we want so badly. If you believe in yourself, the world has no option but to believe in you too.
The strongest factor for our success is self esteem. Believe you can do it, believe you deserve it, believe you can get it. Believe that there is something inside you that is greater than any obstacle.
Make daily affirmations to yourself;
I'm unstoppable,
I'm amazing,
I celebrate myself,
I'm prepared to succeed ,
I can do anything,
Do this quite often if not daily, and see how your world will change to the best version.
Remember, remaining positive is a choice!