P&L statement , corporation tax, salary, dividend ,

A start up company Prakash Chandwani Group Ltd . I have a made a excel with different catergory Vs Month for the expenses and Income to arrive at the net profit / loss. A property lettings company with very less transcations .I need to submit this details to corporation tax , profit and loss account , get salary for my self and self assessment . Get some tax saving advice for myself . Taxation return for 23-12-19 to 23-12-20 and 23-12-20 to 30-12-20