I just finished a lesson on coursera that I think could benefit some beginners here. One of the key point was that before deciding to invest on cryptocurrency, it’s important to seek professional investment advice and take time to understand how the market works for the fact that crypto is volatile and considering the fact that cryptocurrency can be confusing from the early time.
I don't care what you did and other newbies did but if the things done leads to awareness of super high risk of altcoins, and great opportunity of Bitcoin, then a decision of invest in only Bitcoin, that's good.
Otherwise, if decision is invest in altcoins only or mostly in altcoins, that's terrible. As mentioned, altcoins are super risky and you will lose your money with altcoins.
With Bitcoin, if you invest money in it, store it properly (and surely have multiple usable backups, test and know how to recover wallets from wallet backups), as well as are able to hold it for several years, you will get profit. That's like a profit guarantee from Bitcoin for long term Bitcoin investors and holders.
See this hodl line for profit.
https://hodl.camp/