Yes you have to consolidate because we are going into a bear season that many altcoins would not survive and you would not want to be holding those. Do understand that some coins were just created for speculation purposes and this coin were not meant to be held, they will die over time and keep making you lose money. Narrow down your investment to what you are interested in that is one mistake we making in this space, we invest because others are investing, it should not be so.

If you are a game lover or gamer then research on project in that section, there is a chances you could be able to spot good project because you have have interest in this area. Bitcoin and ethereum is a most keep, put large amount of money in this two and the rest should be consolidated, I can not tell you projects to hold but do some research on the project you are currently holding and you will know which is worth holding.