@LoLaceWrites - I'd advise against spamming people / profiles to read your work, it's poor etiquette. The best way forward in my experience is to find people who write similar stuff to you, read their stuff, leave feedback, build relationships, and utilise the community to help you improve. It might be a slower burn, but I'd say it's infinitely more valuable in the long run.
I'd also advise making yourself aware of the Content Guidelines in particular as they govern what you can and can't post on Wattpad. For example, just cos you've said "Mature Content, read at your own risk" in your story's About Me section does not give you the right to upload content that's contrary to Wattpad guidelines.
Oh, and be aware of the Mute, Block and Report functions too. If you see something you think is contrary to guidelines, or someone's giving you a hard time, then there are systems in place to help you be safe as a user. And the Ambassadors are always available to answer any questions you might have if you can't find the answer on the Help pages.