Use feedback to your advantage. If someone else is doing what you want to do, or is "where" you want to be in life, ask questions! Ask others how they succeeded? What was their journey like? What obstacles did they have to overcome? What did they learn? And then ask if they would critique how you are currently going about things. Honestly tell them what you are and are not doing. Then - do yourself a huge favor and shut up and listen.
If you want change in your life, don't come up with excuses and stories as to why you CAN'T. Instead after you are done listening, come up with possibilities and solutions as to how you CAN!