If you didn't separate on either of your last sets, why do you think that if you do separate on this set it will end up the same? That's the point. Separating makes them not mash together into 1 giants messy lock.
And you should never twist/ Twisting them causes the hairs at your roots to get pulled out of your scalp. That is what causes thinning locks and locks that end up falling out because there is too much weight being pulled on thin roots.
If you washed and actually did separate regularly this time around, I'm sure they'd be better. Don't separate too often, but once or twice a week after you shower will keep them from matting all together.
That mashing into your locks was what dreadlocks do. that's how the tangle. Look at peoples pictures here of how loopy their locks are. As they grow and mature, they will tangle with loose hairs on your scalp and even with themselves. Dreadlocks typically loose 1/3 to 1/2 their original length because of this looping. Dreadlocks are tangled loopy hair. If you had let them go and allow them to keep getting sucked into themselves, you'd have been fine.