I own 11 - I don't count the stablecoin USDC
I don't own two in the list below, but if I do buy them I will use the Percentage.
9.7% Bitcoin Cash
40.1% Bitcoin
37.8% ETH
1.8% ADA
7.0% Atom
1.0% EOS
1.0% CRV
1.5% Link
2.1% MATIC
1.9% SOL - don't own yet
0.4% VET - don't own yet
0.3% USDC
1.5% DOT
1.1% XLM
I mainly own the following coins.
Wpp
Ksm
Eth
Dot
Trx
Ocean.
Unfortunately I don't own BTC but soon I will convert some of my coins to btc
I remember that was a mistake I once also made

All the alt coins were so tempting because of their unreasonable gains, so I decided to sell my Bitcoin and get into alts. Out of a sudden of course all alts dumped and Bitcoin shot up. Would have I just kept my Bitcoin back then I would be way better off than I ever was with switching into alts.