Try out the tomato technique

+org.el

@@ -78,3 +78,7 @@
   (add-to-list 'org-pandoc-valid-options 'metadata-file))
 ;; Allow referencing by label in org-ref
 (setq org-latex-prefer-user-labels t)
+;; Extend pomodoro length to 45/15
+(setq org-pomodoro-length '45
+      org-pomodoro-short-break-length '15
+      org-pomodoro-long-break-length '30)