I don't think counselling is the correct word. I think you mean that you needed advice. You should say 'I planned on asking my lecturer for advice'. Counselling is usually used when you need advice because you are mentally ill. As far as I'm aware, You could then say 'I planned on having counselling today'. To make you sentences better, you could also try to join sentences. Even with the corrections I gave, it still doesn't flow very well. For example, you could change this ..... The secretary said he was in a meeting at this time. I will wait until he comes even though I don't know how long he will be. To this .... The secretary said he was in a meeting at this time so I decided I will wait until he comes even though I don't know how long he will be. Hope this helps :)