If you wish to manifest your desires, there should be a singular question at the top of your mind at all times, and that question is whether or not the thought you are thinking is positive or negative. You can answer this question by identifying the way a particular thought makes you feel.
If a thought makes you feel good, you can consider that thought to be a positive thought from your current perspective. If a thought makes you feel bad, you can consider that thought to be a negative thought from your current perspective. If a thought does not trigger any emotion within you at all, you can consider that thought to be a neutral thought from your current perspective.
Since the way you feel is your point of attraction thereby indicating how future experiences you are attracting will make you feel, positive thoughts create experiences that make you feel good, negative thoughts create experiences that make you feel bad, and neutral thoughts create experiences that match the experiences you are presently experiencing. Thoughts of your desires are always positive good feeling thoughts and you can direct your attention towards any good feeling positive thought to create good feeling positive experiences that match your desires.