Relationship advice

Me & my bf are best friends for 9 years and been dating for 7mnths on the 19th ... The past 3weeks have been really tough on us and we're kinda straying away from the light... We are both trying to get back on the right path cuz even tho he said he was fed up ... He wants to be in a happy relationship... So we're trying to rekindle. But we're both kinda confused due to our lil break up ... We both lover each other really much but it's like it gets tough sometimes b/c we haven't got thru this hard time yet ... Any advice on how to /you got thru a really hard time in relationship