Steven W,
Congratulations on what you have done!
The reason I'm posting this is that I have had almost the same results as you (just multiplied by a factor of 2). Here's my daily total NAV for the time since the US presidential election, which is when I started doing this:
2016-Nov-08 53,207.93
2016-Nov-09 89,054.65
2016-Nov-10 99,006.30
2016-Nov-11 107,388.65
2016-Nov-14 122,711.32
2016-Nov-15 128,570.64
2016-Nov-16 135,887.10
2016-Nov-17 142,962.25
2016-Nov-18 153,030.17
2016-Nov-21 166,248.24
2016-Nov-22 174,831.18
2016-Nov-23 160,708.89
2016-Nov-24 160,708.89
2016-Nov-25 126,914.02
2016-Nov-28 125,076.67
2016-Nov-29 117,411.60
2016-Nov-30 159,656.58
2016-Dec-01 140,948.22
2016-Dec-02 167,541.28
2016-Dec-05 153,307.38
2016-Dec-06 159,025.89
2016-Dec-07 171,632.58
2016-Dec-08 173,988.62
2016-Dec-09 171,100.64
2016-Dec-12 181,553.39
2016-Dec-13 161,571.03
2016-Dec-14 175,112.57
2016-Dec-15 181,753.71
2016-Dec-16 189,788.18
2016-Dec-19 197,936.51
2016-Dec-20 199,541.77
2016-Dec-21 200,774.46
2016-Dec-22 211,707.77
2016-Dec-23 205,904.61
2016-Dec-26 205,904.61
2016-Dec-27 210,480.47
2016-Dec-28 213,382.96
2016-Dec-29 221,790.94
2016-Dec-30 231,829.27
2017-Jan-02 231,829.27
2017-Jan-03 237,232.42
2017-Jan-04 245,886.75
2017-Jan-05 223,379.63
2017-Jan-06 229,960.46
2017-Jan-09 234,868.50
2017-Jan-10 240,150.66
2017-Jan-11 239,501.22
2017-Jan-12 224,171.87
2017-Jan-13 244,830.05
2017-Jan-16 244,830.05
2017-Jan-17 254,513.90
2017-Jan-18 262,608.64
2017-Jan-19 269,798.10
2017-Jan-20 266,037.59
2017-Jan-23 265,635.71
2017-Jan-24 270,262.76
2017-Jan-25 218,904.13
2017-Jan-26 229,999.77
2017-Jan-27 215,699.01
2017-Jan-30 231,136.43
2017-Jan-31 237,551.82
2017-Feb-01 237,086.13
2017-Feb-02 250,071.18
2017-Feb-03 265,681.74
2017-Feb-06 275,294.38
2017-Feb-07 280,263.97
2017-Feb-08 291,705.61
2017-Feb-09 299,785.37
2017-Feb-10 294,060.27
2017-Feb-13 289,488.74
2017-Feb-14 265,549.91
2017-Feb-15 249,539.68
2017-Feb-16 264,575.46
2017-Feb-17 251,376.98
2017-Feb-20 251,376.98
2017-Feb-21 258,452.35
2017-Feb-22 280,028.31
2017-Feb-23 224,512.55
2017-Feb-24 279,765.36
2017-Feb-27 288,394.40
2017-Feb-28 266,684.88
2017-Mar-01 276,840.80
2017-Mar-02 310,389.71
2017-Mar-03 322,280.69
2017-Mar-06 325,145.73
2017-Mar-07 334,748.06
2017-Mar-08 242,401.32
2017-Mar-09 208,321.05
2017-Mar-10 232,213.56
2017-Mar-13 249,679.73
[I withdrew $28,000 in December and $30,000 in January, so I'm actually up more than a quarter million as of right now.

]
Anyway, at some point on March 9, my NAV was down in the 170s. I never felt like it was a big problem, to the point where I would question whether I should quit, but I have been thinking on how to possibly avoid those huge losses in the future. Interestingly enough, my answer so far has just been to take more entries (rather than fewer).
In case you're wondering, I trade futures, hundreds of transactions a day. I don't have a system. I input all my orders manually, and my decisions are based 100% on intuition. (I spent over a decade looking at the markets, sometimes more than full time, and losing small amounts of money almost every year until I finally started going for it right after the election.)
With my kind of reckless trading style, I know full well I have to expect to blow out my account once every couple of years, maybe even more frequently, but does that really mean I should quit now? It does feel weird to lose about as much as one would need to pay cash for a house, within a few minutes, just because I haven't figured out how to better control my risk. Then again, just like you, I've made a lot more than I've lost, so it's not totally unreasonable to continue, is it?