I've always failed to independently mix and master my tracks. I've no problems with composing but my mixing and mastering always lets me down and makes me give up finishing my tracks. My unfinished and unmastered track:
ēther
If there's one thing I've learned, especially on Audiotool, is that the snares and clap are quite loud and should be turned down some to keep them in line with the kick. I've learned this especially in house music, as just slapping some claps and snares in there and not turning them down you'll notice the kick immediately gets drowned out which is NOT good. So I suggest keeping those claps and snares at a lower level and of course check how loud they are using the VU meters on the centroid, and of course your ears.
One trick I've found to avoid claps and snares (or other sounds with very sharp attack transients) is to use envelopes to soften the attack. For example, on the Machiniste you can set the Envelope Ratio to a very small value to soften the sample attack. This way you can avoid the possibility of clipping without sacrificing volume.
Eqing is also a very important part of this. There might be an unnecessary frequency that is throwing off the mix, so you can cut or reduce it with a graphical eq. A lot of people (including myself) have the mistake of making the mix too thin to sound professional or something, and thats also bad
If you're going to push the mix loud, don't overdo it. You don't want it to be distorted, or unlistenably compressed. That's all I can say, because I don't know much other than that.
If there's one thing I've learned, especially on Audiotool, is that the snares and clap are quite loud and should be turned down some to keep them in line with the kick. I've learned this especially in house music, as just slapping some claps and snares in there and not turning them down you'll notice the kick immediately gets drowned out which is NOT good. So I suggest keeping those claps and snares at a lower level and of course check how loud they are using the VU meters on the centroid, and of course your ears.