yes no one on here should jump down someones throat who is new looking for information.. this is something needto has instructed all mods to enforce, cause like you said we all were new at one time as well.. hell i remember asking some pretty dumb questions when i was a newb although i did do a lot of reading up before asking.
however the OP also needs to listen to the advice of vets on this board, and stop trying to convince us he is ready for deca for a first cycle or any AAS for that matter at 150 pounds. put on 15-20 pounds on quality muscle mass. keep researching.. and then come back and run something like a short dbol or beastdrol cycle to get his feet wet the first time. lots of newbs i've talked to have run 4 week beastdrol and have been very pleased with the results. and its not gonna shut you down like deca would.
in the end if he chooses to run the deca anyway, i can guarantee it won't be a very fun experience and it will end up setting him back and being counter productive. trust me i know new guys who ran deca the first time.. on cycle they were beasts, then off cycle they ran into gyno problems, gut and water problems, and many shrunk up like balloons after cycle and quit on the gym when they lost their motivation and libido.