What is the way?

Hi community!

I know that when marketing a product, you must be patient and test many ways to see which ones work better. I'd just launched an Unlimited Design Service. Far from that, this is what I'd have tried already:

• Connections on LinkedIn: after trying many, there are really few people who respond, even though I'd tried techniques where I'm not selling my service from the first message, instead providing material such as a post with valuable information. But not someone really interested.
• Cold email outreach: I'd been personalizing emails so users may feel more attracted; I already sent just a couple but not answered yet.
• Posting on LinkedIn: Finding niche groups and sharing short but valuable information so users may get interested, my result from this is getting connections from people who are not my ideal clients (which doesn't mean they are not valuable).

As I told you at the beginning, I know I have to be really patient and try more, but it is still very frustrating. I just want to share this experience with you guys!