Welcome @Tarik Ouradi to BiggerPockets.One of the marvelous things about a community is that it enables us to welcome and help people in a way we couldn't as individuals.Please reach out to me; I would be glad to help.

By trade, I am a musician, and while I am looking for that to be my main source of income, I am looking to have multiple streams of income to build a pretty net worth. 

I'm Aaron Rose - musician, roof salesman and family man in Denver just getting into real estate investing and really fired up about it!

I've bought two homes thus far and one was a bad deal - buy and hold,  the other is my current residence that I managed to purchase at at great time which enabled me to have a substantial amount of equity. 

I've been a music educator and musician for the last 10 years, in which time I've also started a music studio, as a small business.

This enabled me to turn a purchase that was already a winner into a bigger one.

This enables you to sell quickly so you can redeploy your capital to the next project.I know we were very blessed on this first deal and I don't take that for granted.  

Just got off the phone with a mortgage lender, and he suggested I don't go super aggressive with deductions this year (I'm self-employed as a musician, and most of my "jobs" are either cash or 1099 independent contractor).  

I use a spreadsheet called Buy-Hold-Evaluator (you can find it on FilePlace section) and it enables me to automatically save a deal on a separate tab where i can easily compare it against others. 

That is very uncommon and can enable you to get twice the amount of doors for your money but depends on your risk appetite.