Its getting a mess of converting compounds to another..

lik haloalkane to alcohol aldehyde etc.
is there any trick or way to get the reactions understnd quickly?

Hi..
Ya, to make the conversion part little easy, you first of all need to tabulate the important reactions for each topic.
Like you can tabulate the important reactions of alcohols, phenol and ethers separately, the reactions of acids together, and the reactions of general hydrocarbons separately.
Now, practice doing the questions taking th ehelp from such tables.
With time , you will be able to memorize those reactions and use them even if you dont have the tables in hand..