I have a Job Interview and I need to achieve that flawless face/ skin look any tips?

I have combination/oily skin as well, but I use some products that help keep it under control. The E.L.F. Studio Tone Correcting Powder (best if used under foundation) helps soak up oils and tone down redness. If your not good at finding foundations, I would suggest going to a department store and trying out different foundations because a person there should be able to find a good match. MAC Pro-long wear has full coverage and lasts all day (personally I have not tried it, but I hear so many great things about it). As for concealer, I use the BHCosmetics Camouflage Concealer Palette. It's great because no matter what skin tone you have you can mix the colors to find a good match. Oh, another great foundation product is the E.L.F. Mineral Personal Blend, where you can also blend together the different colors to find the perfect match for your skin tone very easily. My Mom has it and she loves it. All in all, you should still get a liquid foundation because it gives you more coverage and then put a powder foundation on top because that generally helps set it for the day. To remove excess oil that builds up through the day, just buy some oil blotting sheets because they get rid of the oil very well without taking your makeup off. The ones from E.L.F. are the cheapest, but buy whatever ones you want. Hope this helps! :)