Confused between applying immediately to graduate school and taking a break for research experience
First and foremost you need to research specific graduate programs -- focus on the program and the specific research topics and opportunities. If and when you find one that really excites you, apply now. If you don't get accepted, or change your mind in the meantime, identify what would most interest you next. Maybe this will be your "Option 2". If so, and after a year there you still want to get in to the original graduate program, apply again. Frankly, if this is the way it works out, you'll be better off, as you'll have much more perspective.

Don't fixate on a higher degree in a specific field per se. Depending what country you are talking about, you could be working at the degree for several years. It better be something that you're obsessed about, in adepartment with a pleasant and helpful culture, in a liveable town/city. The odds are that the expectations you've build up in your mind will not resemble the reality for very long, so the reality better be workable.

I worked in industry for almost five years before going to graduate school, and during that time I flatly rejected suggestions that I should consider it. Ultimately I realized I did indeed want to go deeper, and applied. One bit of advice I got was "if the thought that you should be going to graduate school isn't the first thought on your mind when you wake up in the morning, don't go." By the time I applied, that was true. I had a fantastic time in the early years, but was very frustrated by an uncooperative advisor by the end. I finished, and tried to make academia work for another ~12 years. I quit a year and a half ago, as I realized the university was no place for somebody with my priorities and level of integrity. The PhD per se is of no consequence to me now; in fact it renders me overqualified for just about everything. My specific areas of study are of no consequence either. I'm not sorry I did it, but if I'm honest, there was fair bit of waste involved.

If I had to do it over again, I would (1) get myself organized and leave industry for graduate school after 3.7 years instead of 4.7 years, (2) switch labs when I first started thinking about it (after about 3 years into the degree), and (3) quit the academic charade when I first started doubting it, about 7 yrs post-PhD, rather than sticking it out for another 5. If I could redo things, I'd be in just about the same place I am now, but with 8 more years up my sleeve, and I'd be far less disaffected.