I had learnt a refined way of making auto suggestions ( think and grow rich)
Incorporate positive feelings into your affirmations. And design them in a way in which the subconscious feels that you already have the “phenomenon” in concern, and the intensity of the phenomenon is increasing over time.
For example.
I feel so happy and grateful now that I earn 100,000 thousand dollars from various sources of income on a continuous basis and I realise it more and more.
Maybe you could modify strong affirmations from other sources to suit your needs.