I'd work on educating yourself. I live in Seekonk and formally owned a rental property in Pawtucket that I recently sold. It went pretty quickly and for the price I wanted. So what I mean by educating yourself, is to know the market and know what it will take to get into a house. If you are looking for a fixer upper, it helps to know about how much it will cost to fix it up. Most houses in an area such as Pawtucket are also going to rent for different prices depending in what part of Pawtucket you are looking in. If you hone in on a smaller area of Pawtucket, you limit yourself to the number of available houses, but you will also be able to determine how much all those houses will rent for and will be able to easily recognize a good deal when it pops up.
Also, work on making contacts in the area by visiting/joining a local REIA group. I am in the same position you are in, where I actually have found some great properties with numbers that work well, but I don't have the contacts right now to jump in to a fixer upper and get a price for rehab before the more experienced investors come in and scoop it up. Also, in our market a lot of stuff is going to people who are looking to live in the houses and are not just investing.
Also just one more quick tip, get pre-approved for a loan before looking for houses. It will help with your offers.
I understand your frustration, and I commend you for going around and actively looking for deals. It sounds like you have done some learning in the past few months on BP, but really get to know the market by connecting with agents and other contacts through the REIA groups. And if this agent isn't jumping quick enough for you to get your offer in early, there are many others in the area that I'm sure would be happy to help.
Good luck on your journey into RE investing.
Kevin