Mitigating the effects of a potential new capital gains tax

[percy]

How am I going?.
I have $1mil at start of the tax year,
I buy 10 stocks at 100k each.
7 of those stocks go up 20%. so I have $840k of winners,which I hang into going into year 2.
3 of those stocks 10 stocks go down 10%,so I sell.So I have $270k,so claim $30k of losses.No tax to pay.
Year 2,my 7 winners go up another 20%,so $840k is now $1.008.
The 3 new stocks I brought using the $270k [ie $90k each] have had a mixed year.
One tripled to $270k,one went up 25% to $112.5k,while the third went down 20%[to $72k] so I sold and claimed $18k loss.
So the portfolio is now $1,462,500.and no tax has been paid,yet I have claimed $48k losses.
The next three years I did not buy or sell anything and the portfolio doubled,so now worth $2,925,000.Still no capital gain tax paid?
"Well positioned".?