I've been flying for 16 years now. 10 years commercially with several at the regionals. I left that job for a position at home flying corporate which I've been doing for a few years now. I've never had any interactions with the FAA outside of linechecks and 299 rides. I've never had any issues. Today I made a mistake. I'm PIC of the trip but sitting right seat as we tend to alternate each day. This was my second day flying with a new hire who does have a lot of flight time and experience. We were taxiing on alpha in SFO. We were told told to hold for traffic crossing left to right then to "continue taxi strait on Foxtrot" followed by bravo. I was in the right seat so I read things back and we continued taxi. There was a 757 directly in front of us we had been following. We were taxiing to runway 1R. I was getting our frequencies ready when I hear "Clear left", I habitually looked up and said "Clear right". We taxied strait on foxtrot and crossed runway 1L. In my mind, had never been to SFO, we were going to cross 1L and 1R then turn right on Bravo to taxi for takeoff on 1R. As we crossed I'm told "XXXXX you just taxied across an active runway". My heart sank. I started pulling up the diagram and wondering what had happened I even responded that we were told to taxi strait on foxtrot. We had been following the 757 that just crossed and somehow everything felt normal. I looked at the chart and saw that Bravo was not on the other side of the runway. The "taxi strait on foxtrod" had led me to feel otherwise as is did my co-pilot. Neither of us had any question of what we were to do. Sitting there between 1L and 1R I was informed we were to have taken alpha to foxtrot to a right on bravo. Looking at the diagram I can now see what was intended but I can also see how with the busy environment and movement around us that we made the mistake that we did. I was given a number to call which I did. I spoke with the head of the ATC who was actually very understanding and nice. I literally had no idea what to expect as I've never had to make a phone call either. He told me he understood and these things happen but that he is required to send his information to the SFO FSDO. He said "They're a really good group of guys and are understanding, keep your chin up and go about your business and expect to hear from them via mail." We continued on but I've felt like absolute dog mess this entire time. I'm a younger guy with a lot of time left on his career and have actually been putting my resume out there for mainline carriers recently. Just finished hiring a consulting group to look over everything which they said looked very good. I'm pretty torn apart about this. This just happened and I've never had to deal with the FAA before so my mind is spinning. I did fill out an NASA report which I was very detailed in. I didn't try to place blame anywhere. It was an honest mistake. One thing I should as is that there was an aircraft that was lined up and waiting. It was waiting on the 757 to cross and since we were close to the 757 the other aircraft was never given any clearance to takeoff, never applied power or moved, and tower again seemed very understanding and sympathetic to what happened. My question is how screwed am I? What can the FAA do to me? What will go on my record if I already submitted a NASA form? If I apply somewhere what will they see? Also how long should I expect all of this to take? This isn't pleasant by any means, wouldn't wish it on anyone, and I'm a mess wondering how much I'd stuck my career. Thank you for any response.