Half of the job is building the sort of kick sound.
The other half of this is shaping your mix right, so the kick fits properly.

If there are overlaps in frequency ranges your kick will end up muted and muddy, you need to carefully sculpt your mix so that it kicks and thumps in the way you want it to. You could have a perfect kick, but a lousy mix will swallow it whole. Or you could have a perfectly balanced mix with a kick that doesn't fit in it.

Its not easy unfortunately.

As for your mixes not sounding loud - there are a zillion tricks to bring up mix volume, mastering is one of them but really you have to learn how to build load mixes, and balance your mix across the frequency range and stereo space. This is also not easy.

The perceived loudness of your track and the way the kick fits are two of the more dominating themes of techno these days. No easy answers really, just got to experiment and learn as you go.