The best way is not to focus on any college while preparing. Let your inner self motivate you because if you don’t end up in your dream college, you will face a lot of backlash and feel mentally drained. This may hinder your growth. Always be ready to give your best. Make sure your results are improving every time and any shortcomings should be taken as motivation to work harder.
Remember that motivation is not always easy to come by, and it's okay to take a break and relax when you need it. Don't be too hard on yourself, and always keep in mind that progress takes time.