There is nobody in the world that can force you to practice but you!
Unless you prioritize practice and make time for it, practice will never occur. For some people this means they have to commit to completing their practice or creative work before any other work responsibilities. For some people this means that a certain section of the day or after the workday is solely dedicated to deliberate practice.
I’d recommend starting with something as small as 5-10 minutes a day, for a short stretch of days, say 3-5. Once you’ve successfully strung your first days of practice together repeat the process. Repeat until it no longer feels planned but part of the regular routine.
Once you’ve past the threshold of forced-habit you can start to tweak or intensify your routine. Don’t be discouraged if you miss practice in extreme circumstances, but remember: there is no practice police. You have to build the self-discipline over time to stay on course.
It’s also helpful to find simple ways to practice during other leisure activities. For example, whenever I sing along to music in the car or at home (several hours a day, typically) I choose to sing harmonies instead of the main melody. This allows me to experiment (comfortably) and connect dots and sounds in almost micro-doses.