How to write code to create indicator for counting bar number?

Hi Experts,
I have traded for 4 years, but I'm still a novice at programming. I started learning how to write code a couple of days ago so that I can create my indicator for trading purposes. You can see the indicator (look at the image) which I am trying to create. Utilities of the indicator:

1. At a specific time in the day (I mean every day), it appears number 1 below Low of the bar at that time. You can see in the image, number 1 appears below the Low of the bar at 08:00. We can simply call it is Start Trading Hour. By the way, my main TF is M5.
2. Then, it does not show a regular sequence of numbers 1, 2, 3, 4, 5,... It shows an even number (2, 4, 6, 8,...) sequence corresponding to the bars after bar number 1.
3. After 12 bars, the number will change color because there is the time the bar on H1 closed. 12 bars on M5 = 1 bar on H1. So the color of numbers 12, 24, 36,... will be changed.
4. It keeps going on until a specific time like 20:00 on that day (not yesterday or tomorrow). That is End Trading Hour. After 20:00, it won't appear any numbers.
5. Tomorrow at the same time 08:00, again... repeat and repeat...

I know I have to ObjectCreate(...), OBJ_TEXT but the time and price... I don't know how to write that...
Thank you so much for helping me!

Anyone help me, please!

Aren't you doing it more complicated than it is? It seems to me you want to visualize a specific time during the day in hourly intervals. So look for a session indicator and a hourly timeframe indicator.

M5 example:

I am so sorry for being late!
Wew It's not simple like that. Anytime I look at the chart, I want to know the location of that bar. It's helpful for my trading. EX: When I look at Big Green Bar, I know that bar is bar number 8 because number 8 is below it, right? And I know it's coming to bar 12, bar 12 = 1 hour. At that moment (bar 8), we have 60% chance that the close of bar 12 will not below the open of bar 1 because of bar 8. So on H1, 60% chance it will be a green bar.
If the bars don't have numbers below, how do I know it has 4 more bars left for 1 hour.