Take it from someone who was in your shoes a few short years ago. From my expense I will list in order my next few purchases.
1. Tamron 28-75 2.8 - this is the single most useful lens I have. 65% of the pictures I take on a wedding day is using this lens. If you need wider the 18mm end of your kit lens is 3.5. Since the sharpest lens is not a must for weddings and portraits the wide end of the kit will do (for now).
2. K3 body. Having never had a card failure until last Saturday, my K3 purchase moved well up my list of best money I have spent that is gear related. Get it with the best SD cards you can find and have RAW fils saved to both cards.
3. 2 to 4 good flash units that have a good guide number and you can manually set the power output on them. Natural light photography is important but lighting portraits with off camera lighting is key to setting yourself apart from other new photographers. Every couple asks if I shoot candid shots. The artistic portraits are what they end up getting. I have 10 flash units because I have learned how important lighting is and I have gotten enough to cover about any situation I find myself in. 2 to 4 will allow you the start learning the hardest part of photography.
4. DA* 50-135 2.8- this is a special lens that gives you a bit more range. It allows you to take some truly stunning portraits.
5. DA* 16-50 or 17-50 2.8 (Sigma or Tamron). Now get your wide lens out of the way. Unless your style is to shoot wide shots this will be the least used of your fast zooms.
This is just my opinion and what has fit for my style. Not at all saying this is right for you. Just do you research and base your purchases based on what will allow you to improve on what area you feel is your weakest areas. Practice, practice, practice!!!
Edit: welcome to the forum. Like someone earlier said establish a few strong social media efforts before paying for marketing.
Last edited by macman24054; 12-04-2016 at 09:36 PM.