2 months is not a lot of time to be playing, but a 1.5 is a good beginner's reed. Your embouchure will strenghten over time and it will get easier to play. I would say continue to use the 1.5 as long as you don't develop the habit of biting down. Very bad.

As to the reed in the photo, a chip is not ideal, but if you don't have another reed and that one sounds okay and doesn't give you any problems, I think it's okay to use it.

Reeds do need a brake in period. It is best to have like 5 reeds and play a few minutes a day on each one. Within a few days they will start breaking in and you will decide which of the five seem to work best for you. Dont just take a reed that is fresh and play it till its dead. Then move back to a fresh one. That is very unproductive to developing your sound.  Have a small working group to chose from.

Reeds are very fickle. Some may be softer than others. Some may not be as even as others.

Weather conditions can make a good reed play nice one day and bad another.

In time, your face muscles will strenthen and make this process a lot easier to deal with.

Welcome to the horn!!

Thank you both for replying!
Meanwhile I got kindda used to the 1.5 reeds so I'll stick to that for some time now. I will also buy some more and use them "all at once."