How to limit current while almost keeping voltage same
You seem to be trying to make a split-rail PSU out of a 24 V DC supply. 

Look at your first circuit. You have 24 V short-circuited by D5 (I think, because you've covered it with a label) and D3. If your supply is strong enough these will be destroyed very quickly.

Your second circuit is the same although you have attempted a current limiter so the diodes may be protected.



How to proceed:


Write a specification. This should include input voltage range, output voltages required, current required on each output.
Attempt a design. Try to lay it out so that current flows from top to bottom. That will affect the layout of your diodes in particular.
Eliminate unnecessary kinks and cross-overs in your schematic. Use GND symbols where possible to eliminate wires.
Review your design looking out for silly stuff (such as short circuits as described above).
Turn off the grid before taking screengrabs.
Update your question. Avoid phrases like "voltage almost hit the ground" and use phrases like "voltage dropped from 24.3 V to 1.4 V relative to ground".