Almost complete novice here. Have shaved slightly before but am contemplating a thorough job this time in order to wear a bikini for the first time. Don't feel madly keen to get waxed at a salon due to shyness and pain aversion. But if I bit the bullet or attempted it at home would I need to trim first to shorten hair? Or should I just shave again but more? Oh and I have tried hair removal cream once and was left patchily bald. If you recommend cream do I need to trim first then too? Thanks.