frustrated with my dash

I cant seem to see the picture, but from what youve described you are missing a couple of key things here, firstly, i wouldnt colour sand to 1500 before you put a clear down, as theres not enough key on the piece, do an 800 wet, then apply the clear. Apply around 3 wet coats of clear. Sand the whole lot with 800 wet, then 1500 wet, then 2000 wet. make sure you arent cutting through to the colour though. Always use a block when sanding or you will groove the panel. If there are a lot of curves use a flexible sanding block. Then theres a 3 stage compound to get a decent deep gloss shine. Use a medium compound first such as Farecla G3, then use a finer compound like Farecla G10, and then followed by a machine glaze compound like  Farecla Machine glaze. You will need a high speed rotary buffer, a standard orbital buffer isnt gonna cut it! then give it a wipe. should look pretty cool from there.

From other posts it sounds like you have grooved your panel. Get filler on the low spots and Block sand the whole lot. Fill all pin holes with Glazing putty or spot putty. Glazing is a little runnier. Then get it in primer.

To be honest i wouldnt bother spraying an area bigger than a door pod with aerosols. Either Invest in some decent equipment, or get your body shop to at least do the colour and clear if you get it in primer.