You need to convince people that this is just another short-lived MN project. Though you already mentioned that you've been working for about 2 years already on this project, but still a lot of users already got burned with MN projects. It is like the cycle of launch-sell MN-list-pump-dump-leave then repeat. This is why some are avoiding MN coins because they are being screwed by this type of investment. So aside from being a MN or PoS, you should find a tangible use case for your coin, where you don't need to rely your income from buyers of coin but because you have application in the market.