Nothing ever works fully unless it was earlier planned on. You are not going to have an easy time exercising unless you plan doing so early enough. The best thing you need to do is to sit down and find out how much free time you have on a daily and throughout the week. Once you have the right personal data, decide how much time per week you are going to spend doing the exercises. You need to set realistic time goals. You need to be smart enough with this one, otherwise you are going to find yourself never following the routine.
No one said it is ever going to be easy. Nothing is easy in this world and doing exercise is not an exception. It is a difficult task, and it needs that you be a disciplined person otherwise you may never achieve the results that you want to achieve. Create schedule and place it somewhere you can access with ease. Binding the exercise schedule again the wall would be a great idea. At least every time you look at it you will always remember that you have to follow your exercise routine to achieve your flexibility goals.
Setting realistic goals (what you hope to achieve from the exercise) is the only best way to get yourself motivated with your home workout routines.