Not financial advice here, but I would certainly do more research on the ICO, understand the project and the tokenomics, make sure I like the concept, team and potential before considering any investment. I will also check out many review sites like crushcrypto.com and youtubers' views as a reference. Eventually this comes down to a few picks and then I will distribute some funds accordingly. My current favorite is Hadron and Swapy but you might have complete different choice. Bearing in mind the high risk of ICO in general as well, even a great team might not make it in the end, but at least I know I am investing in something that's I really like
Yup, you can never be too sure.
I gues going with ICOs done by already established companies is a good idea. The Telegram one, for example.