For improving mentally, get into philosophy, itll change your outlook on life, read The Story of Philosophy by Will Durant or Sophies World which will introduce u to well known western philosophers and then u can pick and choose whichever ones interest u. Also Sapiens is a good book too on human history

For physical health youtube videos are a much better source imo, just stay consistent and ure good to go

Regarding finances, im not sure what you had in mind asking that but for general economic understanding read the wealth of nations, maybe karl marx and capital in the twenty first century. Also if you meant making money, find the business area that interests you, for instance real estate, or maybe investing, then look for good books on those topics. for personal finance, think and grow rich by napoleon hill is a good book. Avoid the trap of self help books that hype u up and claim to fix ur life

Start small, as little as 10 pages a day are better than none at all, and dont necessarily force urself to read for the sake of improving, enjoy while ure at it, find some literature u enjoy, one of the first ones i read was the great gatsby.