Sleep deprived

26m preparing for a competitive exam! I need to correct my sleep routine while i went to the doctor who was MD Medicine he told me I have had anxiety and put me on amytryptiline stupid me taking it so lightly that how Can I have anxiety consulted another doctor with same qualification who told me the same, i was a bit on shock how can I be in anxiety when I don't have any active memory of it behaving anxiously anyways room those amytryptiline but as my exams were few months ahead those tablets did a lot of sedative work and yet i could sleep for long thinking that my sleep schedule is still prolonged because i started sleeping bit much i stopped and started depriving me of sleep and gave exam then i shifted towards an organic diet and exercise routine a bit of it was cured but before few months i have started having same things and this time i have been actively noticing anxiety and and negative thoughts! Should I be going to a psychiatrist i just know it costs a lot and since i don't want to be a financial burden to anyone but I do realise it needs to be corrected for my future endeavours and not to be taken granted Please suggest some good clinical doctors for the cause in the City! Which you must have had results for!!