Break your complex project down into a list of tasks. You want list items specific enough that you have a clear idea of where to start. Now do the first few t

Break your complex project down into a list of tasks. You want list items specific enough that you have a clear idea of where to start. Now do the first few tasks. After 2 or 3, you'll have built momentum and that's the hard part. To keep your momentum, stop before an easy task so tomorrow it's easy to start up again. Do the same when taking breaks. Tick/strike your tasks as you go, as it's satisfying to see your progress. Set specific and realistic timeframes for each task, keeping in mind they'll all take you three times longer than you think they will. Always be able to answer "where will my project be 1 day/week/month from now" to keep yourself on track. Rinse/repeat, get enough rest, get enough exercise and time away from computer. Especially if you're doing dayjob AND side-project sitting at a computer. Resist the urge to pull all-nighters.. although you're 23 so once in a while is probably OK :-)