This is like a couple assignments and resources management to make it successful.
*Set target amount of CP to attain for a span of week minimum of 500 cp per week(applicable for below 20k cp)
*Always run boss rush and Ruins(BP that you will get would be useful to buy golden crates)
*For golden crates I advice to buy when there is Hadum runes chest, tier 6 pet and Enhanced Alchemy stone chest
*Never missed your daily bounty Mission and Event targets.
*Don't keep pushing for item Enhancement, there are lot of way to gain CP.
*For crystals try to use CP based Mystical crystal first if your CP is still below 18k
*Once you hit 15k CP make sure you have alts(2nd character) already for Path of Glory
*Finish all main story quest as possible but once you're stuck try side quest or other things on the list above to gain CP.(don't let your self stuck for more than 3 days)
*Hadum farming is very helpful for your knowledge and Rift stone level.
*Maximize the usage of blazing Chaos crystal while your rift stone is below level 100, but if you're going to use Normal Chaos Crystal always go for 50% only
*Silver is one of your best asset so save as much as you can. For additional info you can drop comment so I can still provide additional info