what's a good sample size for a W-L record?

i've been on a heater with my new strategy and want to help people but not sure if my sample size is big enough yet for anyone to take seriously. i started my current formula on 1/31 and since then i have a record of 24-7 on straights (77.41%) with no odds higher than -145. proof here. the graphic is missing yesterday's bet but that's only bc it will be the start of the next graphic for my next 30 bets but it was celtics/cavs under 225.5 which was a winner. 

i asked chatgpt how i'm doing and it said i'm doing great but that this win rate is unsustainable and that i'm most likely just getting lucky lol. so i wanted to ask some real people what a good sample size to take seriously is bc chatgpt said everything is just noise until you get to like 300 bets but that seems a little excessive. thx.

Opinion here is just to post pick with spread, juice and publish record of +/- , it’s easiest to see who is on the plus side and follow then some other people here who post post big ML and then claim they are something like 17-7 when those 7 losses were all -300 ML or more

Agree with above comment, the bottom line transparency is all that should matter when it comes to wagering,saw posts last week from a bragger who said he was 25-6 and claimed anyone who bet 1000 on each game would be up 20 grand, which of course his math did not add up as his losses were mostly -170 or more

1,000,000 bets would give you a good idea.