1st time user of bc and i want to skip my period, so since i am more prone to spotting, which will be more beneficial: skip placebo or only use half?

Skip period: It will generally work better if you skip the 7 days of placebo and go directly to the next pack. You can do this for up to 3 packs, but on the third pack you should take the placebo pills so you will have a period. You need to have some periods at this age in life to promote the strengthening of your bone to reduce chance of osteoporosis later in life.