I’m so happy for you because of your close and promising relationship with your dad. I’m sure your father is also proud of you and your success in life, which is growing every day. This close-knit rapport between you and your father is mutually beneficial for both of you.
Glad to see that you are active in our forums. This is a very good practice for you to improve your writing skills. Just keep doing that.
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he but it for me = he buys it for me
This is are the reasons that why my dad is the most valuable person in my life. = These are the reasons for which / why my dad is the most valuable person in my life.