As designers we have very high expectations of our own portfolios. Try to take the pressure off. Don’t overthink it. Build a system so you can easily and quickly publish work and keep it up to date. Identify your own barriers and then build solutions to overcome them. 

The temptation to redesign your portfolio can make you lose sight of your goal. Stick with an old design if it means getting the new work up. At the end of the day, that is the most important thing. Schedule time to come back to the design at a later date. 

If your work is covered by an NDA, you might feel like there is no way around it - you just can’t build a portfolio. Instead of this mindset, could you consider sending a password protected link to share your work? How about blanking out information that is private? Or send through a password protected pdf. Remember your goal is to get an interview, so you need to share just enough to interest the company and give you a chance to present your portfolio in more detail at an interview. 

If you are really short on time, create an archive. Even if you have a portfolio, creating an archive which you can reference at a glance is a good idea. Keep it simple. The information can be sparse to begin with, the year, the project, the company and a holding image is enough. If you want to host your archive on a platform, try using Dribble.