Attracting Visitors to a Site with No Visitors

Hello, I have a site for 1 month, my ranking by google is not progressing as I want. So if I attract the audience myself, will it harm me in terms of SEO? For example, if I share a site that receives 0-1 hits per day in a relevant forum, if I attract 100 people to the site and half of them leave my site in a short time and the other half use the site, will it harm me? There is a 1-hour rise in hits on my site, but then it gradually decreases. Will Google penalize me for this? Or is this good for SEO? The forum I mentioned is not indexed, will it cause this problem?

The more traffic the better, you're good

No, it won't harm you. You need as much traffic as possible. I recommend you use Google Ads and advertise your website on various social media platforms.