I would like to know how to use an interdental brush for dental care.

I would like to know how to use an interdental brush for dental care.
Hello. Every time I visit the dentist, I am advised to use interdental brushes, but when I actually try to put it into practice, it is too cumbersome and time-consuming, so I keep skipping it. I would like to ask for practical advice along with proper care methods.

1. Priorities for Time Reduction
It is too much of a hassle to use an interdental brush every time I brush my teeth. Would it be effective if I used it properly just once during the most effective time of day (e.g., before bed)? Or is it essential to use it, even briefly, after every meal?

2. Brushing your teeth and using an interdental brush—there is a set order, right?
I am wondering if it is better to use an interdental brush first to clear the gaps, or if it is correct to clean up leftover debris after brushing. I would like to know the slightly more efficient order.

3. How to deal with bleeding
I get scared because it bleeds every now and then. Please let me know if I should ignore the bleeding and keep wiping it, or if I should stop temporarily.

4. Practical Management Tips
The spacing between my teeth varies, so I'm also struggling to choose the right size. It's too much of a hassle to treat every single tooth, so would it be okay to just focus on managing the vulnerable areas where tartar builds up particularly easily?

If there is a 'cost-effective care method' that is absolutely essential to follow for dental health, even if it is bothersome and inconvenient, I would appreciate honest answers from experts.