Tell them everything, they will guide you if you don't know how to start or continue. Just don't be afraid and for your second question you can marry through ተክሊል if you are a virgin. Kissing will not take you virginity but you need to tell your neseha abat about that and you will be clean as new after the ቀኖና. Your nesha abat will give you advices on how to stay on the road to God so don't worry much.