Your cells are surrounded by a very important type of lipid, called phospholipids. Phospholipids consist of a hydrophilic (or 'water loving') head and a hydrophobic (or 'water fearing') tail. Phospholipids like to line up and arrange themselves into two parallel layers, called a phospholipid bilayer. This layer makes up your cell membranes and is critical to a cell's ability to function.
On a film or modeling set, a makeup artist may spend six to eight hours doing makeup for the day. For an individual client appointment, the time span may be an hour to three hours. If a makeup artist is working for a bridal party, then he or she may spend the entire day working with clients.
Becoming an expert overnight just isn't going to happen. You are going to have to put a lot of work and dedication into becoming an expert at anything. In his book Outliers, Malcolm Gladwell says that it takes about 10,000 hours of practice to achieve mastery in a particular field. While you may not have to devote that much time to become an expert, depending on the subject you select, you are looking at hundreds to thousands of hours of some or all of the following: