Об­ра­зуй­те от слова ANXIETY од­но­ко­рен­ное слово так, чтобы оно грам­ма­ти­че­ски и лек­си­че­ски со­от­вет­ство­ва­ло со­дер­жа­нию тек­ста.

Many new businesses have a rather ______ time trying to build up customers and make profits. They are encouraged and even relieved when I explain to them that it is not normal to make profits immediately. It can take years before a business is functioning correctly.