Today is Sunday
So I called my friend, let's call her Lisa, Lisa is a great friend of mine and she like cycling as well,
[congrats on your mastering of the "of mine" concept.]
Lisa liked the idea of cycling.
We arranged to meet at a square in our city. When I was leaving home it dawned on me that I had a flat tire, too bad, I still wanted to go, so I had to look for a tire shop to repair the tire.
Luckly it was not so dificult, I found it ( ) in no time, right in the corner of the street. So I went there and got my tire repaired, it cost me two Reais. It didn't took long, I was on time to go cycling with my friend. She brought a friend of hers*, with that, it made three of us and we had a great time. Cycling is a great manner to clean one´s head.
( ) some word or chunck left out.
* a friend of hers (certainly she have more friends, including you. If she had only one, would b e a friend of her.)
**to clean the/one´s head - could be with shampoo, but there is one meaning of "wiping erasing bad memories etc"
I would rather state "Cycling is a great manner to unwind/relax/cool out." etc.
Note: I was on time/in time =
In time - ainda deu tempo para.
On time - eu não me atrasei para...
Let´s wait more polishing, further improvements. This is just a kick-off.