One problem can't solve from first, if new investor can't trust new fresh coin why they don't invest in old coin. We several good coin already exists in cryptocurrency even with very low price. Even I don't think there could be a trust problem. All solution is now is the correction time!!
New coin = New concept = New Feature = New Future = usually get biggest gain.
look at ethereum, when ethereum first release the price only $10, and the ATH is $1,432.88 USD (Jan 13, 2018) , we know if we buy right now and ethereum can reach his ATH we can gain 10x profit, but if we choose new coin with potential rising, the profit maybe 100x like ethereum from $10 to $1432
It's not always working dude, so many projects have brought the new concept but the majority of them ended as exit scam project. Too much expectation for ethereum to reach 10x but again no ETA about when that will be happening. People may argue about it can reach the ATH again but when it comes to the fundamental of the ethereum platform itself and that's a difficult target as it's still pegged with bitcoin.