France Schengen visa

When traveling alone they do check your application on its own merits. Yes, your previous application will likely be checked but your financial circumstances and needs are different now.

With your husband and child staying behind, you have much stronger reasons to return home. This may or may not influence how they value your financial situation, it will certainly not hurt your chances this time.

Your regular income and expenditure should match and leave enough money for the travel you plan to do. From the information in the comments, you had planned a rather expensive short holiday. It is not unlikely that the officer handling your application was suspicious because of the high price of the hotel for a touristy trip.

This time you travel alone, which makes a different financial position and a different need for money.

You need proof of your combined income and expenditure, mostly that will be the bank statements of your combined bank account(s) but other proof of income or owning property can be helpful as well. You need to proof your regular income is big enough that your planned journey is to be expected of someone in your financial position and that it will not bring you into financial problems.