using my own sounds as samples?

Rapture and DPro both can load samples into their elements and play them back. To layer more than one sample per element requires sfz files.
 
Dropzone is another option but 32bit only.
 
A more conventional free sampler is TX16Wx

Plogue 'sforzando' is another freebie sampler plugin.  https://www.plogue.com/products/sforzando/
 
With a simple UI, it lets you drag and drop a wav onto the UI, just like Dropzone.  Then it automatically generates a sfz file on import, that you optionally can open to edit with one click on 'open in text editor'.
 
As soon as you drop the wav, you can start playing it. 
 
For more advanced editing, looping, and setting multisamples in a graphic editor, or for multitimbral use, the TX16Wx is probably a better instrument. 
 
sforzando is cool for instant gratification.  But if you learn the sfz format, you can go deeper with it, and that will open up sampling for the Cakewalk synths that are based on that.