hey there! i took a year off before applying to M.A. programs in archaeology (funky interests make me the ultimate anthro fence-sitter, but archaeo is the closest subfield), so i think i'm in a good spot to give you my two cents on this.
i don't think i ever went more than 3 weeks without doing some kind of work. most of it has been unpaid or on a really small stipend, which has been pretty difficult, but i've made it work; i don't have a car, i don't eat meat, i have money saved up from part-time jobs during school, and i do a lot of focus groups when i can. anyway, i had a few of my POIs say they were impressed with the work experience i had on my resume/cv. there is so much you don't — and can't — learn in an undergrad classroom setting that is seriously important in archaeology. for example, i never really knew what section 106 was until i got my first job after graduating, even though i wanted to go into federal/public archaeology. it was never mentioned in a single class. i had to go out of my way at my job to learn about it, but it was worth the effort, and i got some good field and lab experience along the way.
basically, work. as much as you can. don't be picky; it's a really hard year for paid fieldwork. apply for everything, and don't stop applying until you have an offer in hand. try to not go more than, say, a couple of weeks without working (besides holidays, of course). work is great for field and lab experience, but it also teaches you a lot about thinking critically, working cooperatively (from direct co-workers to consulting parties) and independently (read: being a self-starter), being a great communicator, and so on. plus, you can make connections with mentors (possible LoR writers, and general beacons of awesomeness) and friends who you'll probably bump into down the road.
also, go to as many training seminars and annual group meetings (e.g., SAAs, AAAs) as you can, even if you're not presenting a talk or poster. as a student, you can usually do so for free, or close to it. apply for scholarships through the group running the event, and you probably won't have to foot much of a bill. it's a nice way to network for jobs, make face time with POIs, and find new topics you're interested in.
considering you're an undergrad who's publishing and presenting, i suspect you'll be totally fine. just keep working, and go to cool places with good pay if that's an option!