I think heartbreak always sucks but, if you're doing it right, each time you get better at managing it. I don't think that it gets any easier per se but you become more familiar with the terrain and how to navigate it each time you go through it.

Without knowing more of your specific situation, my general advice would be to get through the initial phase where you're just barely keeping it together and everything reminds you of them etc. etc. and once you're past that part then, basically, start dating yourself.

Sounds weird I know but if you focus on making yourself happy and taking yourself on outings to do interesting things then it's going to make moving on easier because you'll keep yourself busy and you'll find ways to make your life fulfilling without needing to have a partner with you. I also think it sets you up well for the next person who you start dating because you won't be desperately lonely or in dire need of someone else to make you happy but instead you'll be like "I was gonna take myself for a picnic - wanna join?" and you'll get to see if they fit in well with your lifestyle and if they contribute to your overall enjoyment and happiness.

If you come at dating from a place of need then it can cause a lot of headaches and you might compromise a lot more than is ideal but if you're like "This date kinda sucks and I'd rather be doing this by myself because last time I did this I was alone and it was much more enjoyable" then you won't find yourself getting drawn into poor quality relationships because your loneliness is motivating you to settle for less than you deserve.