Walaikumasalaam
Do you have an azaan speaker at home? Having the call to prayer i.e. azaan in your home brings a lot of barakah but more importantly reminds you to pray.
Keep fighting your nafs. Keep trying. Keep praying even if you miss waking up for fajar. Don't wipe off the full day. Pray the rest of your prayers. It is very nornal to revert back to your old habits but if you keep continuing with your new habits insha Allah it will become your new habit.
Hold yourself accountable at the end of the day and identify what you need to improve on? What you have inproved on? Your goals and aims etc. Allah swt loves the deeds which are consistent so even if it is a baby step in your eyes keep doing that good deed. Focus on your salaah as this is faraz. Compulsory and this is the key' to improving your relationship with Allah swt. Consistent prayers will do wonders for your emaan and you will think twice, thrice and many times before you commit sins. Subhana Allah.
I love brother's Hoblos advice. He is very passionate Masha Allah.