Some become depressed and paralysed. The key is to admit this will be difficult and take time to adjust to the idea. Break the task down into smaller sections. Solve one room at a time. Keep the best furniture and give the rest to college bound grandchildren or to the Salvation Army.
Family members are the best new owners for well-loved possessions.
You can still see it and be gratified that it is being used by people you love. If you need to sell many items, consider getting an independent appraisal and then offering the items to furniture dealers or to an auctioneer . They have a responsibility to you. Don t keep them away with the false pride of independence. The key is to admit this will be difficult and take time to adjust to the idea.