where do i start???

ok so im new to this whole allotment thingy... well iv ONLY just got it, but cant start doing anything till next weekend when i get a key..

so i have 9 beds, there rather large,
i want a shed/greenhouse and a chickeng hoose on it.. i already got me one, on freegle, and my mom said i can have her shed... woopp woop.. lol

so, what do i do with the rest#? i know i have  hard work, as they hae been left for ages, they need new planks, and a fence blah blah..
so when i have done that what next? can i plant anything? its october nearly so i take it thats a no..

oooooo help.. hahha.. OH ps.. any money saving ideas would be GREAT.. im only 23, so im skint.. haha.. 

Don't spend a lot of cash on planks for your beds. Either get them out of skips or do without. You can have beds without wood on the edge.