Your preceptor is a charge nurse with TWO orientees???? I feel for you (been there, done that), but--and please don't take this the wrong way--you need to give your preceptor a great big hug and thank her for trying!
Also, please don't worry so much about the skills. Work on your time management and critical thinking. When you are able to get some downtime, offer to other nurses to do IVs and the like. The skills will come in time.
One of the biggest problems I see with people in charting is that they try to chart on everyone all at once and manage their time that way. Although they might think they have an hour to chart, there is always something that comes up to delay it even more, and they almost always end up staying late. Try it a different way. Chart on one patient when you have 10 minutes. Then another when you have 10 minutes. When I switched to that method, I rarely have to stay late to chart.
You said your 12 meds are late. I know the morning is filled with to-do lists before you even start--assess, pass meds on the big morning round, treat blood sugars, delegate or help do morning care--but have you found ways to cluster as much as possible? When you get report and see your patient, assess pain and take a look at VS and pull any PRNs with the am meds so you don't have to pull/give twice. If meds are an hour apart, see if you can give them at one time safely. Clustering is the only way to get everything done.
The grass is not always greener in the first year. If you go to a different place now on the same type of unit, you'll face the same problems, plus you'll have to learn unit-specific processes all over again. I firmly believe that if you don't have the nursing part down, going somewhere else brings more problems than it solves.
Staffing is an issue nearly everywhere. Never believe the ratios given during interviews. They are rarely completely true. I was told 5:1, but I usually start out at 6:1 because there is a plan to discharge someone. Then, with a second discharge during my shift, I will get two admissions. That's eight patients in a 12-hour shift, with the discharges and admissions taking longer than just having the same six patients during a shift.
I know you may not like this suggestion, but I found it helped me. I did nights for more than a year and now I rotate. I'm thankful to have worked nights because I was able to work on time management. There are the crazy nights where time management is essential, but I think nights is a great starting place for new grads. Other, more experienced nurses may have more time to assist and teach you. I learned everything from my night charge in that first year. I did a ton of IVs on nights, placed NGs and Foleys on night admissions, did total care on trach vents (my favorite type of patients, actually). Comaraderie is good on nights. One of my favorite shifts (no, really!) was a low census night, and there were only 2 RNs and 1 CNA who also helped out on a sister unit. The only way we got everything done was to work together.
Good luck to you.