There is no switch that makes someone feel horny on demand. Desire changes with mood, energy, relationships and health. If you are not interested right now, you do not have to force it. If you would like to explore what helps, start with curiosity rather than a performance goal.
Make room for what feels good
Privacy, enough time and a comfortable setting may make it easier to notice what you want. Some people prefer conversation or touch; others like fantasy or a scene that fits a particular mood. If VR is your thing, browse a collection that actually interests you, such as POV videos, and stop if it is not working for you. There is no need to keep watching just because you started.
Notice the pressure around sex
Stress, tiredness and relationship concerns can affect desire. Talk to a partner about what feels welcome and what does not. A low-pressure evening together can be more useful than trying to meet a deadline for arousal. Porn can be a source of ideas, but it is not a measure of how quickly you or a partner should respond.
When a change concerns you
A persistent or distressing change in libido can have many causes, including medication or health issues. The NHS overview of low sex drive recommends talking with a clinician if you are worried or think a medicine may be involved. Do not stop a prescribed medicine on the basis of a blog post. The useful question is what has changed for you, not whether you match someone else's idea of normal.
