I need help with a racing game timer system

[Crewko]

I am making a racing game, I have a WB for a timer. I also have a lap counter BP, and a 3,2,1,GO countdown WB. All of these I followed YouTube tutorials on:

How to Make a Game Start Countdown in Unreal Engine 5

How To Make A Timer | Unreal Engine 5 Tutorial

How to Make a Race Lap Counter in Unreal Engine 5

I would like to do a few things.

1. Make the timer begin counting after the 3,2,1,GO. I’ve tried to use Delay and Do Once but I can’t seem to figure it out.
2. stop the timer when the player’s lap counter reaches a certain number, then display it in a new WB.
3. display the player’s fastest time in the level select in the main menu.

If anyone could help me with all this stuff, i would greatly appreciate it!