If I can do it, you can do it. I used to hate skyblock because I'd screw up my lava all the time and quit because I was bad at it. As of last night, my island was up to level 127 and in 4th place without very many of the fancy blocks. It's mostly stonebrick and challenges. Still making some noobish mistakes though. Like I bought a cow spawn egg not knowing I could get one from a challenge. It kind of worked out because now I can breed them. My island partner also made a booboo and now we have a non-working nether portal because he didn't realize you were supposed to claim the challenge while the stuff was in your inventory. Now we have to wait until we get enough diamonds to take it down and claim the challenge. :/