Hello Aina,
First of all to learn Spanish you gotta understand that this language is highly phonetic. If you properly learn no pronounce the vowels you are going to be 20% of the road there because the vowel sound does not change. Ever.
Second we use subject first and then the adjective. Blue Pans will be Pantalones –Pans– Azules –Blue–. Like always.
Start with that knowledge in your mind and you will be able to get it faster.